Mixtures of pentafluoropropane and a hydrofluorocarbon having 3 to 6 carbon atoms

Abstract

The invention discloses novel azeotrope-like mixtures of fluorinated compounds which are useful for heating and cooling as heat transfer agents and/or refrigerants. The azeotrope-like mixture comprises: (a) pentafluoropropane; and (b) a hydrofluorocarbon of the formula: C.sub.x F.sub.y H.sub.z, wherein x is 3, 4, 5, or 6 and y and z are each independently 1 or a positive whole number such that the result of y/(y+z) is greater than 0.67.

Description

RELATED APPLICATIONS

This application claims priority on U.S. Provisional application Ser. No. 60/001,530, filed Jul. 26, 1996, which is incorporated herein by reference in its entirety.

FIELD OF THE INVENTION

This invention relates to mixtures of pentafluoropropane and a hydrofluorocarbon having 3 to 6 carbon atoms. These mixtures are useful as refrigerants for heating and cooling.

DESCRIPTION OF RELATED ART

Fluorocarbon based fluids have found widespread use in industry for refrigeration applications such as air conditioning and heat pump applications. Vapor compression is one type of refrigeration. In its simplest form, vapor compression involves changing the refrigerant from the liquid to the vapor phase through heat absorption at low pressure and then from the vapor to the liquid phase through heat removal at an elevated pressure.

The primary purpose of refrigeration is to remove energy at low temperature. The primary purpose of a heat pump is to add energy at higher temperature. Heat pumps are considered reverse cycle systems because, for heating, the operation of the condenser is interchanged with that of the refrigeration evaporator.

Certain chlorofluoromethane and chlorofluoroethane derivatives have gained widespread use in refrigeration applications including air conditioning and heat pump applications owing to their unique combination of chemical and physical properties. The majority of refrigerants utilized in vapor compression systems are either single component fluids or azeotropic mixtures. Moreover, certain applications, such as centrifugal chillers, can only use pure or azeotropic refrigerants because non-azeotropic mixtures will separate in pool boiling evaporators resulting in undesirable performance. In other applications, non-azeotropic (or zeotropic) refrigerants may be used.

Azeotropic or azeotrope-like compositions are particularly desirable because they do not fractionate on boiling. This behavior is desirable because in the vapor compression equipment in which these refrigerants are employed, condensed material is generated in preparation for cooling or heating purposes. Unless the refrigerant composition exhibits a constant boiling point, i.e., is azeotrope-like, fractionation and segregation will occur on evaporation and condensation producing undesirable refrigerant distribution which may upset the cooling or heating. If a leak occurs in a refrigeration system during use or service, the composition of the azeotrope-like mixture does not change and, thus, the system pressures and performance remain unaffected.

The art continually seeks new fluorocarbon based azeotrope-like as well as zeotropic mixtures that offer alternatives for refrigeration and heat pump applications. Currently of interest are fluorocarbon based mixtures that are considered to be environmentally safe substitutes for the fully halogenated chlorofluorocarbons (CFC's) presently used that are suspected of causing environmental problems in connection with the earth's protective ozone layer.

The substitute material must also possess those properties unique to the CFC's being replaced including chemical stability, low toxicity, non-flammability, and efficiency in use. The latter characteristic is important in refrigeration and air conditioning especially where a loss in refrigerant thermodynamic performance or energy efficiency may have secondary environmental impacts through increased fossil fuel use arising from an increased demand for electrical energy. Furthermore, the ideal CFC refrigerant substitute would not require major engineering changes to conventional vapor compression equipment currently used with CFC refrigerants.

Mathematical models have substantiated that hydrofluorocarbons such as pentafluoropropane, including 1,1,2,2,3-pentafluoropropane (HFC-245ca), 1,1,2,3,3-pentafluoropropane (HFC-245ea), 1,1,1,2,3-pentafluoropropane (HFC-245eb), and 1,1,1,3,3-pentafluoropropane (HFC-245fa) will not adversely affect atmospheric chemistry because these hydrofluorocarbons are negligible contributors to ozone depletion and to "green-house" global warming in comparison to fully halogenated species.

However, 245eb has been found to have flame limits under normal ambient conditions and HFC-245ca and HFC-245fa have been found to have flame limits under certain conditions. It has not been confirmed whether or not the other pentafluoropropane isomer also exhibits some finite flame propagation behavior in specific environments. This flame propagation behavior would significantly limit the potential use of pentafluoropropane isomers in refrigerant applications.

SUMMARY OF THE INVENTION

In accordance with this invention, novel mixtures have been discovered comprising pentafluoropropane (HFC-245) and a hydrofluorocarbon of the formula C.sub.x F.sub.y H.sub.z wherein x is 3, 4, 5, or 6 and y and z are each independently 1 or a positive whole number such that the product of y/(y+z) is greater than 0.67. Preferably, the 245 isomer is either 245ca or 245fa, most preferably 245fa. A second aspect of this invention is a cooling process in which any of the refrigerants of this invention are condensed and then evaporated in the vicinity of an object to be cooled. Additionally, the same process may be used to heat an object in the vicinity of the condensing refrigerant. Both the heating and cooling processes may be characterized as processes for transferring heat by condensing the refrigerant in a first region to be heated, transferring the refrigerant to a second region to be cooled, and evaporating the refrigerant in the region to be cooled.

The compositions of the invention comprise, consist essentially or consist of azeotrope-like or zeotropic mixtures. Azeotrope-like characteristics are inherent in those compositions in which an azeotropic system exists. In such systems, the precise azeotropic compositions have not been determined but have been ascertained to be within the ranges indicated herein. In general, in such systems, the azeotrope-like compositions exhibit vapor pressures within about .+-.5 psia and preferably within about .+-.2 psia (at 0.degree. C.) of the vapor pressure of the true azeotrope (at 0.degree. C.).

DETAILED DESCRIPTION OF THE INVENTION AND PREFERRED EMBODIMENTS

The following discussion relates to those compositions which are azeotrope-like.

From fundamental principles, the thermodynamic state of a fluid is defined by four variables: pressure, temperature, liquid composition and vapor composition, P, T, X, and Y, respectively. An azeotrope is a unique characteristic of a system of two or more components in which X and Y are equal at the state P and T. In practice, this means that the components of a mixture cannot be separated during a phase change and, therefore, are useful in cooling and heating applications. Azeotrope-like means that the composition behaves like an azeotrope, i.e., has constant boiling characteristics or a tendency not to fractionate on boiling or evaporation. In such composition, the composition of the vapor formed during boiling or evaporation is identical or substantially identical to the original liquid composition. During boiling or evaporation, the liquid composition changes, if at all, only minimally. In contrast, non-azeotrope-like compositions change to a substantial degree during boiling or evaporation.

The azeotrope-like compositions of this invention exhibit essentially constant vapor pressure characteristics as the liquid mixture is evaporated and show relatively minor shifts in composition during evaporation. Thus, the compositions are advantageously used in a vapor compression cycle because they mimic the performance of a constant boiling single component or azeotropic mixture refrigerant.

Another characteristic of azeotrope-like compositions is that there is a range of compositions containing the same components in varying proportions that are azeotrope-like or constant boiling. All such compositions are intended to be covered by the terms "azeotrope-like" or "constant boiling" as used herein. As an example, it is well known that at differing pressures, the composition of a given azeotrope will vary at least slightly as does the boiling point of the composition. Thus, an azeotrope of A and B represents a unique relationship, but with a variable composition depending on temperature and/or pressure. As is readily understood by persons ordinarily skilled in the art, the boiling point of the azeotrope will vary with the pressure.

The compositions of this invention may include additional components. In the embodiment where azeotrope-like compositions are involved, the preferred additional components are those which do not form new azeotropic or azeotrope-like systems. In other words, additional components that are not present in a first distillation cut taken. One way to determine whether the addition of a component forms a new azeotropic or azeotrope-like system is to distill a sample of the system under conditions, such as with reflux, that would be expected to separate the mixture into its separate components. If the mixture containing the additional component is non-azeotropic or non-azeotrope-like, the additional component will fractionate from the azeotropic or azeotrope-like components. If the mixture is azeotrope-like, some finite amount of a first distillation cut will be obtained that contains all of the mixture components and is constant boiling or behaves as a single substance. As used herein, "first distillation cut" means the first cut taken after the distillation column displays the steady state operation under total reflux conditions.

The additional components that may be used include those components added to tailor the properties of the composition to the end use. For example, it is known to add propane to refrigerant compositions to aid solubility, with commercial refrigeration lubricants. Other suitable additional components will be readily apparent to those ordinarily skilled in the art.

As such, the present invention meets the need in the art for a refrigerant that has a low ozone depletion potential and is a negligible contributor to global warming compared to fully halogenated CFC refrigerants. Further, the compositions of the invention are nonflammable, have a coefficient of performance and capacity suitable for use as replacement refrigerants, and have low compressor discharge temperatures. In one process embodiment of the invention, the compositions of the invention may be used in a method for producing refrigeration that comprises condensing a refrigerant comprising the compositions of the invention and, subsequently, evaporating the refrigerant in the vicinity of a body to be cooled. Alternatively, the compositions of this invention may be used in a method for producing heating that comprises condensing a refrigerant composition comprising the compositions of this invention in the vicinity of a body to be heated and then evaporating the refrigerant.

The compositions of this invention may also be used as heat transfer fluids. For example, in certain refrigeration systems, it is desirable to operate the system at a specific temperature. However, maintaining the desired temperature may require the addition or removal of heat. Thus, a secondary heating loop containing an appropriate heat transfer fluid may be added. The heat transfer fluid absorbs heat in one part of the cycle and transfers the heat to another part of the cycle without changing state when the heat transferred is sensible heat, or by changing state when the heat transferred is latent heat.

In another process embodiment of the invention, the compositions of this invention are used in a method for producing polyurethane and polyisocyanurate foams. The method comprises reacting and foaming a mixture of ingredients that forms the polyurethane and polyisocyanurate foams in the presence of a volatile blowing agent comprising the compositions of this invention. The blowing agents of this invention are used alone or in a premix with a polyol. The premix comprises the compositions of this invention prior to reaction and foaming of the ingredients forming polyurethane and polyisocyanurate foams. Suitable polyols for the premix are known in the art, for example in U.S. Pat. No. 5,130,345 incorporated in its entirety herein by reference.

In yet another process embodiment, the compositions of this invention may be used in a method for producing foam comprising blending heat plasticized resin with a volatile blowing agent comprising the compositions of this invention and introducing the resin/volatile blowing agent blend into a zone of lower pressure to cause foaming. The compositions of this invention may also be used in a method of dissolving contaminants or removing contaminants from the surface of a substrate. This use comprises the step of contacting the substrate with the compositions. The compositions of this invention may also be used as fire extinguishing agents or as volatile carrier fluids or propellants in aerosol formations.

Preferably, the materials used to form the compositions of this invention are used in sufficiently high purity so as to avoid the introduction of adverse influences on the cooling or heating properties or constant boiling properties of the azeotrope-like embodiments of the invention. The invention is illustrated in the following Tables 1 through 4. With respect to these Tables, it is to be understood that the specified composition weight percentages are prefaced by the term "about"; and NBP refers to the normal boiling point; VP refers to vapor pressure equal to 0.99 atm and also the chemical structures are shown with letters and numbers with the understanding that in these structures, the capital letters are on the line and the numbers are in subscript to create the standard chemical formula notation.

These mixtures are used in conventional heating and/or cooling equipment as is described in numerous U.S. patents and published articles.

In a preferred embodiment, the azeotrope-like mixture comprises 1,1,2,2,3-pentafluoropropane, and the hydrofluorocarbon which is independently selected from the 245ca components of Table 1, and is present in the mixture at or between the upper and lower values by weight percent for the preferred, more preferred or most preferred ranges as shown in Table 1.

In a preferred embodiment, the azeotrope-like mixture comprises 1,1,2,3,3-pentafluoropropane, and the hydrofluorocarbon is independently selected from the 245ea azeotrope components of Table 2 is present in the mixture at or between the upper and lower values by weight percent for the preferred, more preferred, or most preferred ranges as shown in Table 2.

In a preferred embodiment, the azeotrope-like mixture comprises 1,1,1,2,3-pentafluoropropane, and the hydrofluorocarbon is independently selected from the 245eb azeotrope components of Table 3 is present in the mixture at or between the upper and lower values by weight percent for the preferred, more preferred, or most preferred ranges as shown in Table 3.

In a preferred embodiment, the azeotrope-like mixture comprises 1,1,1,3,3-pentafluoropropane, and the hydrofluorocarbon is independently selected from the 245fa azeotrope components of Table 4 is present in the mixture at or between the upper and lower values by weight percent for the preferred, more preferred, or most preferred ranges as shown in Table 4.

TABLE 1__________________________________________________________________________245ca azeotropes at 25.degree. C. 245ca Preferred 245ca More preferred 245ca Most preferred AzeoNBP = 25.4.degree. C. VP = 0.99 atm Compositions (wt. %) Compositions (wt. %) Compositions (wt. NBPSTRUCTURE est. BP (.degree.C.) Upper Lower Upper Lower Upper Lower (.+-.1)__________________________________________________________________________CF3CF2CF2CH2CH3 46.3 51 99 61 99 70 89 20CF3CF2CH2CF2CH3 59.4 57 99 67 99 75 91 22CF3CF2CHFCHFCH3 61.7 58 99 68 99 76 91 23CF2CH2CF2CF2CH3 67.2 60 99 70 99 77 92 23CF3CHFCF2CHFCH3 68 60 99 70 99 77 92 23CF3CHFCHFCF2CH3 72.9 62 99 72 99 79 92 24CF3CF2CHFCH2CH2F 70 61 99 71 99 78 92 24CF3CF2CH2CHFCH2F 75.2 63 99 73 99 80 93 24CF3CHFCF2CH2CH2F 76.8 64 99 74 99 80 93 24CF3CHFCH2CF2CH2F 83.1 66 99 76 99 82 93 24CF3CH2CF2CHFCH2F 84.2 66 99 76 99 82 93 24CF3CH2CHFCF2CH2F 85.4 67 99 77 99 82 93 24CF3CHFCHFCHFCH2F 89.1 68 99 78 99 83 94 24CF3CF2CH2CH2CHF2 72.5 62 99 72 99 79 92 24CF3CH2CH2CF2CHF2 80.4 65 99 75 99 81 93 24CF3CH2CF2CH2CHF2 82 65 99 75 99 81 93 24CF3CHFCHFCH2CHF2 86.5 67 99 77 99 82 93 24CF3CHFCH2CHFCHF2 87.7 67 99 77 99 83 94 24CF3CH2CHFCHFCHF2 90.4 68 99 78 99 83 94 24CF3CH2CH2CHFCF3 72.9 62 99 72 99 79 92 24CF3CH2CHFCH2CF3 75.7 63 99 73 99 80 93 24CH2FCF2CF2CF2CH3 65.4 59 99 69 99 77 92 24CH2FCH2CF2CF2CHF2 79.7 65 99 75 99 81 93 24CH2FCF2CF2CH2CHF2 87.1 67 99 77 99 83 94 24CH2FCF2CH2CF2CHF2 87.2 67 99 77 99 83 94 24CH2FCHFCHFCF2CHF2 92.8 69 99 79 99 84 94 24CH2FCHFCF2CHFCHF2 95 70 99 80 99 84 94 24CH2FCF2CHFCHFCHF2 96.6 70 99 80 99 85 94 24CHF2CF2CF2CHFCH3 69.2 61 99 71 99 78 92 23CHF2CF2CHFCF2CH3 74.8 63 99 73 99 79 92 24CHF2CHFCF2CF2CH3 76.3 63 99 73 99 80 93 24CHF2CF2CHFCH2CHF2 91.9 69 99 79 99 84 94 24CHF2CHFCF2CH2CHF2 94.6 70 99 80 99 84 94 24CHF2CF2CH2CHFCHF2 93.6 69 99 79 99 84 94 24CHF2CHFCHFCHFCHF2 103.4 72 99 82 99 86 95 24CH2FCHFCF2CF2CH2F 85.8 67 99 77 99 82 93 24CH2FCF2CHFCF2CH2F 88.1 67 99 77 99 83 94 24CF3CH2CH2CF3 40.7 52 99 62 99 72 90 20CF3CHFCH2CHF2 50.8 57 99 67 99 75 91 21CF3CH2CHFCHF2 53 58 99 68 99 76 91 21CF3CF2CH2CH2F 37.3 51 99 61 99 70 89 20CF3CHFCHFCH2F 50.8 57 99 67 99 75 91 21CF3CH2CF2CH2F 45.8 55 99 65 99 73 90 20CHF2CH2CF2CHF2 55.7 59 99 69 99 77 92 22CHF2CHFCHFCHF2 65.1 63 99 73 99 80 93 23CHF2CF2CHFCH2F 55.3 59 99 69 99 77 92 22CHF2CHFCF2CH2F 57.5 60 99 70 99 77 92 22CH2FCF2CF2CH2F 49.2 57 99 67 99 75 91 21CHF2CF2CF2CH3 35.8 50 99 60 99 70 89 20CF3CF2CHFCH3 26 45 95 55 95 65 85 19CF3CHFCF2CH3 32 48 95 58 95 67 86 20CF3CHFCHFCF2CHFCH2F 120.9 72 99 82 99 86 95 24CF3CH2CF2CF2CHFCH2F 112.7 70 99 80 99 85 94 24CF3CF2CHFCH2CF2CH2F 106.9 68 99 78 99 84 94 24CF3CHFCF2CH2CF2CH2F 111.2 70 99 80 99 84 94 24CF3CF2CH2CHFCF2CH2F 110.3 69 99 79 99 84 94 24CF3CHFCHFCHFCF2CH2F 121.8 72 99 82 99 87 95 24CF3CH2CF2CFHCF2CH2F 114.2 70 99 80 99 85 94 24CF3CHFCH2CF2CF2CH2F 113.4 70 99 go 99 85 94 24CF3CH2CHFCF2CF2CH2F 113.1 70 99 80 99 85 94 24CF3CHFCH2CF2CHFCHF2 120.9 72 99 82 99 86 95 24CF3CH2CHFCF2CHFCHF2 122.2 72 99 82 99 87 95 24CF2CF2CH2CH2CF2CHF2 104.6 68 99 78 99 83 94 24CF3CHFCHFCH2CF2CHF2 117.8 71 99 81 99 86 95 24CF3CH2CF2CH2CF2CHF2 112.4 70 99 80 99 85 94 24CF3CHFCH2CHFCF2CHF2 117.3 71 99 81 99 86 95 24CF3CH2CH2CF2CF2CHF2 107.3 68 99 78 99 84 94 24CF3CH2CHFCHFCF2CHF2 119.2 72 99 82 99 86 95 24CF3CF2CF2CF2CH2CH3 71.4 56 99 66 99 74 91 24CF3CF2CF2CHFCHFCH3 86 62 99 72 99 78 92 24CF3CF2CHFCF2CHFCH3 93.5 64 99 74 99 80 93 24CF3CHFCF2CF2CHFCH3 94.9 65 99 75 99 81 93 24CF3CF2CF2CH2CF2CH3 82.8 60 99 70 99 78 92 24CF3CF2CHFCHFCF2CH3 97.5 65 99 75 99 81 93 24CF3CHFCF2CHFCF2CH3 99.6 66 99 76 99 82 93 24CF3CF2CH2CF2CF2CH3 93 64 99 74 99 80 93 24CF3CHFCHFCF2CF2CH3 102.3 67 99 77 99 82 93 24CF3CH2CF2CF2CF2CH3 92.4 64 99 74 99 80 93 24CHF2CF2CF2CHFCH2CHF2 117.8 71 99 81 99 86 95 24CHF2CF2CHFCF2CH2CHF2 122.4 72 99 82 99 87 95 24CHF2CHFCF2CF2CH2CHF2 123.1 73 99 83 99 87 95 24CF3CF2CHFCH2CHFCHF2 120.4 72 99 82 99 86 95 24CHF2CF2CHFCHFCHFCHF2 132.1 75 99 85 99 88 95 24CHF2CHFCF2CHFCHFCHF2 133.5 75 99 85 99 89 96 24CGF2CF2CH2CF2CHFCHF2 124.9 73 99 83 99 87 95 24CHF2CF2CHFCH2CF2CHF2 123.1 73 99 83 99 87 95 24CHF2CF2CF2CF2CH2CH2F 104.8 68 99 78 99 83 94 24CHF2CF2CF2CHFCHFCH2F 118.7 72 99 82 99 86 95 24CHF2CF2CHFCF2CHFCH2F 122.9 73 99 83 99 87 95 24CHF2CHFCF2CF2CHFCH2F 121.8 72 99 82 99 87 95 24CHF2CF2CF2CH2CF2CH2F 114.1 70 99 80 99 85 94 24CHF2CF2CHFCHFCF2CH2F 125.4 73 99 83 99 87 95 24CHF2CHFCF2CHFCF2CH2F 125 73 99 83 99 87 95 24CHF2CF2CH2CF2CF2CH2F 117.5 71 99 81 99 86 95 24CHF2CHFCHFCF2CF2CH2F 124.2 73 99 83 99 87 95 24CHF2CH2CF2CF2CF2CH2F 112.2 70 99 80 99 85 94 24CF2HCF2CF2CF2CHFCH3 94.4 64 99 74 99 81 93 24CF2HCF2CF2CHFCF2CH3 100.8 67 99 77 99 82 93 24CHF2CF2CHFCF2CF2CH3 104.2 68 99 78 99 83 94 24CHF2CHFCF2CF2CF2CH3 101.4 67 99 77 99 82 93 24CH2FCF2CF2CF2CF2CH3 90.6 63 99 73 99 80 93 24CH2FCF2CF2CF2CHFCH2F 110.9 69 99 79 99 84 94 24CH2FCF2CF2CHFCF2CH2F 115.9 71 99 81 99 85 94 24CF3CH2CH2CHFCF2CF3 96.7 65 99 75 99 81 93 24CF3CH2CH2CF2CHFCF3 104.4 68 99 78 99 83 94 24CF3CF2CH2CHFCH2CF3 100.7 66 99 76 99 82 93 24CF3CHFCHFCHFCH2CF3 115.5 71 99 81 99 85 94 24CF3CH2CF2CHFCH2CF3 111.4 70 99 80 99 84 94 24CF3CHFCH2CF2CH2CF3 108.4 69 99 79 99 84 94 24CF3CHFCH2CH2CF2CF3 97.1 65 99 75 99 81 93 24CF3CHFCHFCH2CHFCF3 112 70 99 80 99 85 94 24CF3CF2CF2CH2CH2CHF2 95.9 65 99 75 99 81 93 24CF3CF2CHFCHFCH2CHF2 111.2 70 99 80 99 84 94 24CF3CHFCF2CHFCH2CHF2 116.6 71 99 81 99 86 95 24CF3CF2CH2CF2CH2CHF2 107.9 69 99 79 99 84 94 24CF3CHFCHFCF2CH2CHF2 120.5 72 99 82 99 86 95 24CF3CH2CF2CF2CH2CHF2 114 70 99 80 99 85 94 24CF3CF2CHFCH2CHFCHF2 111.5 70 99 80 99 84 94 24CF3CHFCF2CH2CHFCHF2 117.4 71 99 81 99 86 95 24CF3CF2CH2CHFCHFCHF2 115.4 71 99 81 99 85 94 24CF3CHFCHFCHFCHFCHF2 128.5 74 99 84 99 88 95 24CF3CH2CF2CHFCHFCHF2 122.7 73 99 83 99 87 95 24CF3CF2CF2CHFCH2CH2F 94.3 64 99 74 99 81 93 24CF3CF2CHFCF2CH2CH2F 102.3 67 99 77 99 82 93 24CF3CHFCF2CF2CH2CH2F 105.3 68 99 78 99 83 94 24CF3CF2CF2CH2CHFCH2F 98.6 66 99 76 99 82 93 24CF3CF2CHFCHFCHFCH2F 113.8 70 99 80 99 85 94 24CF3CHFCF2CHFGHFCH2F 117.5 71 99 81 99 86 95 24CF3CF2CH2CF2CHFCH2F 110 69 99 79 99 84 94 24CH3CHFCF2CF2CF3 50.2 50 99 60 99 70 89 22CH3CF2CFHCF2CF3 57.5 54 99 64 99 73 90 22CH3CF2CF2CHFCF3 60.9 55 99 65 99 74 91 23CH2FCH2CF2CF2CF3 60.7 55 99 65 99 74 91 23CH2FCHFCHFCF2CF3 75.5 61 99 71 99 78 92 24CH2FCHFCF2CHFCF3 80.1 63 99 73 99 79 92 24CH2FCF2CH2CF2CF3 71.6 60 99 70 99 77 92 24CH2FCF2CHFCHFCF3 83.5 64 99 74 99 80 93 24CH2FCF2CF2CH2CF3 76.1 61 99 71 99 78 92 24CF2HCH2CHFCF2CF3 74.6 61 99 71 99 78 92 24CF2HCH2CF2CHFCF3 79.7 63 99 73 99 79 92 24CF2HCHFCH2CF2CF3 77.9 62 99 72 99 79 92 24CF2HCHFCHFCHFCF3 90.2 66 99 76 99 82 93 24CF2HCHFCF2CH2CF3 83.5 64 99 74 99 80 93 24CF2HCF2CH2CFHCF3 82 63 99 73 99 80 93 24CF2HCF2CHFCH2CF3 82.6 64 99 74 99 80 93 24CF3CH2CH2CF2CF3 64.8 57 99 67 99 75 91 24CF3CH2CHFCHFCF3 77.2 62 99 72 99 79 92 24CF3CH2CF2CH2CF3 71 59 99 69 99 77 92 24CF3CHFCH2CHFCF3 76.2 61 99 71 99 78 92 24CH2FCF2CHFCF2CF2H 85.4 65 99 75 99 81 93 24CH2FCF2CF2CHFCF2H 85.2 65 99 75 99 81 93 24CH2FCHFCF2CF2CF2H 81.3 63 99 73 99 80 93 24CH3CF2CF2CF2CF2H 60.9 55 99 65 99 74 91 23CF2HCH2CF2CF2CF2H 82.6 64 99 74 99 80 93 24CF2HCHFCHFCF2CF2H 93.8 67 99 77 99 83 94 24CF2HCHFCF2CHFCF2H 94.3 68 99 78 99 83 94 24CF2HCF2CH2CF2CF2H 86.1 65 99 75 99 81 93 24CH2FCF2CF2CF2CH2F 74.3 61 99 71 99 78 92 24CF3CF2CF2CH2CH2CF3 88.3 61 99 71 99 78 92 24CF3CF2CHFCHFCH2CF3 101.9 65 99 75 99 81 93 24CF3CHFCF2CHFCH2CF3 107.3 67 99 77 99 82 93 24CF3CF2CH2CF2CH2CF3 96.9 64 99 74 99 80 93 24CF3CHFCHFCF2CH2CF3 109.5 68 99 78 99 83 94 24CF3CH2CF2CF2CH2CF3 103 66 99 76 99 81 93 24CF3CHFCH2CHFCF2CF3 100 65 99 75 99 81 93 24CF3CHFCH2CF2CHFCF3 10.6 26 99 36 99 52 83 24CF3CHFCHFCH2CF2CF3 102.2 65 99 75 99 81 93 24CF3CHFCHFCHFCHFCF3 115.3 69 99 79 99 84 94 24CF3CF2CH2CH2CF2CF3 89 61 99 71 99 78 92 24CF3CF2CF2CHFCH2CHF2 98.8 64 99 74 99 80 93 24CF3CF2CHFCF2CH2CHF2 105.1 66 99 76 99 82 93 24CF3CHFCF2CF2CHFCHF2 108.2 67 99 77 99 83 94 24CF3CF2CF2CH2CHFCHF2 101.4 65 99 75 99 81 93 24CF3CF2CHFCHFCHFCHF2 114.8 69 99 79 99 84 94 24CF3CHFCF2CHFCHFCHF2 118.6 70 99 80 99 85 94 24CF3CF2CH2CF2CHFCHF2 109.4 68 99 78 99 83 94 24CF3CHFCHFCF2CHFCHF2 120.3 71 99 81 99 85 94 24CF3CH2CF2CF2CHFCHF2 112.1 68 99 78 99 83 94 24CF3CF2CHFCH2CF2CHF2 105.8 66 99 76 99 82 93 24CF3CHFCF2CH2CF2CHF2 110.1 68 99 78 99 83 94 24CF3CF2CH2CHFCF2CHF2 107.5 67 99 77 99 82 93 24CF3CHFCHFCHFCF2CHF2 118.9 70 99 80 99 85 94 24CF3CH2CF2CHFCF2CHF2 111.4 68 99 78 99 83 94 24CF3CHFCH2CF2CF2CHF2 108.9 67 99 77 99 83 94 24CF3CH2CHFCF2CF2CHF2 108.5 67 99 77 99 83 94 24CF3CF2CF2CF2CH2CH2F 85.8 60 99 70 99 77 92 24CF3CF2CF2CHFCHFCH2F 99.7 65 99 75 99 81 93 24CF3CF2CHFCF2CHFCH2F 105.6 66 99 76 99 82 93 24CF3CHFCF2CF2CHFCH2F 106.9 67 99 77 99 82 93 24CF3CF2CF2CH2CF2CH2F 95.1 63 99 73 99 80 93 24CF3CF2CHFCHFCF2CH2F 108.1 67 99 77 99 83 94 24CF3CHFCF2CHFCF2CH2F 110.1 68 99 78 99 83 94 24CF3CF2CH2CF2CF2CH2F 101.9 65 99 75 99 81 93 24CF3CHFCHFCF2CF2CH2F 111.4 68 99 78 99 83 94 24CHF2CF2CHFCF2CF2CH2F 101.2 65 99 75 99 81 93 24CF3CF2CF2CF2CHFCH3 75.4 56 99 66 99 74 91 24CF3CF2CF2CHFCF2CH3 81.8 58 99 68 99 76 91 24CF3CF2CHFCF2CF2CH3 86.9 60 99 70 99 77 92 24CF3CHFCF2CF2CF2CH3 86.6 60 99 70 99 77 92 24CHF2CF2CF2CHFCHFCHF2 119.8 70 99 80 99 85 94 24CHF2CF2CHFCF2CHFCHF2 122.2 71 99 81 99 86 95 24CHF2CHFCF2CF2CHFCHF2 121.2 71 99 81 99 85 94 24CHF2CF2CF2CH2CF2CHF2 113 69 99 79 99 84 94 24CHF2CF2CHFCHFCF2CHF2 122.6 71 99 81 99 86 95 24CHF2CH2CF2CF2CF2CHF2 107.7 67 99 77 99 83 94 24CHF2CF2CF2CF2CHFCH2F 106.4 67 99 77 99 82 93 24CHF2CF2CF2CHFCF2CH2F 111.4 68 99 78 99 83 94 24CHF2CF2CHFCF2CF2CH2F 113.1 69 99 79 99 84 94 24CHF2CHFCF2CF2CF2CH2F 110.3 68 99 78 99 83 94 24CH2FCF2CF2CF2CF2CH2F 99.4 65 99 75 99 81 93 24CHFCF2CF2CF2CF2CH3 86.1 60 99 70 99 77 92 24CH3CF2CF2CF3 16.8 38 80 48 80 56 72 13CH2FCHFCF2CF3 38 49 95 59 95 68 86 19CH2FCF2CHFCF3 42.6 51 99 61 99 70 89 20CH2FCF2CH2CF3 44.7 52 99 62 99 71 90 20CF2HCH2CF2CF3 40.2 50 99 60 99 70 89 20CF2HCHFCHFCF3 51.9 55 99 65 99 74 91 21CF3CH2CHFCF3 41.5 50 99 60 99 70 89 20CH2FCF2CF2CF2H 44.7 52 99 62 99 71 90 20CF2HCHFCF2CF2H 54.7 56 99 66 99 75 91 21CF3CF2CHFCH2CF3 65.3 55 99 65 99 74 91CF3CH2CF2CHFCF3 68.6 56 99 66 99 75 91 24CF3CHFCH2CF2CF3 66.5 56 99 66 99 74 91 24CF3CHFCHFCHFCF3 77 60 99 70 99 77 92 24CF3CH2CF2CF2CHF2 71.6 58 99 68 99 75 91 24CF3CHFCHFCF2CHF2 80.6 61 99 71 99 78 92 24CF3CF2CH2CF2CHF2 70.5 57 99 67 99 75 91 24CF3CHFCF2CHFCHF2 79.5 61 99 71 99 78 92 24CF3CF2CHFCHFCHF2 76.5 60 99 70 99 77 92 24CF3CF2CF2CH2CHF2 63.6 54 99 64 99 73 90 24CF3CF2CF2CHFCH2F 62.3 54 99 64 99 73 90 24CF3CF2CHFCF2CH2F 68.1 56 99 66 99 74 91 24CF3CHFCF2CF2CH2F 70.3 57 99 67 99 75 91 24CF3CF2CF2CF2CH3 41.9 45 99 55 99 66 88 24CHF2CF2CF2CHFCHF2 80.7 61 99 71 99 78 92 24CHF2CF2CHFCF2CHF2 82.6 62 99 72 99 79 92 24CHF2CF2CF2CF2CH2F 69.8 57 99 67 99 75 91 24CH3(CF2)4CF3 67.1 51 99 61 99 71 90 24CH2FCHF(CF2)3CF3 87.4 59 99 69 99 76 91 24CH2FCF2CHFCF2CF2CF3 92.3 61 99 71 99 78 92 24CH2FCF2CF2CHFCF2CF3 95.8 62 99 72 99 79 92 24CH2F(CF2)3CHFCF3 95.4 62 99 72 99 79 92 24CF2HCH2(CF2)3CF3 88.7 59 99 69 99 77 92 24CF2HCHECHFCF2CF2CF3 100.8 63 99 73 99 80 93 24CF2HCHFCF2CHFCF2CF3 104.9 65 99 75 99 81 93 24CF2HCHFCF2CF2CHFCF3 106.3 65 99 75 99 81 93 24CF2HCF2CH2CF2CF2CF3 94 61 99 71 99 78 92 24CF2HCF2CHFCHFCF2CF3 105.3 65 99 75 99 81 93 24CF2HCF2CHFCF2CHFCF3 107.3 65 99 75 99 81 93 24CF2HCF2CF2CH2CF2CF3 97.4 62 99 72 99 79 92 24CF2HCF2CF2CHFCHFCF3 106.6 65 99 75 99 81 93 24CF2H(CF2)3CH2CF3 96.7 62 99 72 99 79 92 24CF3CH2CHFCF2CF2CF3 89.5 60 99 70 99 77 92 24CF3CH2CF2CHFCF2CF3 94.1 61 99 71 99 78 92 24CF3CHFCF2CF2CH2CF3 97.2 62 99 72 99 79 92 24CF3CF2CF2CH2CHFCF3 89.9 60 99 70 99 77 92 24CF3CHFCHFCHFCF2CF3 101.6 64 99 74 99 80 93 24CF3CHFCF2CHFCHFCF3 105.4 65 99 75 99 81 93 24CF3CHFCF2CH2CF2CF3 94.5 61 99 71 99 78 92 24CF3CF2CH2CHFCF2CF3 90.2 60 99 70 99 77 92 24CH2F(CF2)4CF2H 94.9 62 99 72 99 78 92 24CF2HCHF(CF2)3CF2H 105.8 65 99 75 99 81 93 24CF2HCF2CHFCF2CF2CF2H 108.5 66 99 76 99 82 93 24CF3CHFCHFCF3 38.7 47 95 57 99 67 88 20CF3CF2CF2CH2F 25.7 40 90 50 99 62 87 19CF3CF2CHFCHF2 37.4 46 95 56 99 67 88 20CF3CHFCF2CHF2 39.8 47 95 57 99 68 89 20CF3CF2CH2CHF2 29.1 42 90 52 99 64 87 19CHF2CF2CF2CHF2 40.1 47 95 57 99 68 89 20CH2FCF2CF2CH2CF3 50.8 47 99 57 99 67 88 21CF2HCHFCF2CF2CF3 61.7 52 99 62 99 71 90 22CF2HCF2CHFCF2CF3 65.3 53 99 63 99 72 90 22CF2HCF2CF2CHFCF3 65.8 53 99 63 99 72 90 22CF3CH2CF2CF2CF3 52.6 48 99 58 99 68 89 22CF3CF2CHFCHFCF3 63.3 52 99 62 99 72 90 23CF3CHFCF2CHFCF3 64.6 53 99 63 99 72 90 23CF3CF2CH2CF2CF3 55 49 99 59 99 69 89 22CF2HCF2CF2CF2CF2H 65.3 53 99 63 99 72 90 23CF3CF2CHFCHFCF2CF3 88 58 99 68 99 75 91 24CF3CF2CF2CH2CF2CF3 78.4 54 99 64 99 73 90 24CF3CHFCF2CF2CHFCF3 91.4 59 99 69 99 76 91 24CF3CF2CHFCF2CHFCF3 90 58 99 68 99 76 91 24CF3CHFCHFCF2CF2CF3 87.6 57 99 67 99 75 91 24CF3CF2CF2CF2CH2CF3 77.7 54 99 64 99 73 90 24CF3CF2CF2CF2CHFCHF2 86.8 57 99 67 99 75 91 24CF3CF2CF2CHFCF2CHF2 89.5 58 99 68 99 76 91 24CF3CF2CHFCF2CF2CHF2 91.2 59 99 69 99 76 91 24CF3CHFCF2CF2CF2CHF2 90.9 59 99 69 99 76 91 24CF3CF2CF2CF2CF2CH2F 75.9 53 99 63 99 72 90 24CF2HCF2CF2CF2CF2CHF2 90.4 58 99 68 99 76 91 24CF2HCF2CF2CF2CF2CF3 71.4 50 99 60 99 70 89 24CF3CHFCF2CF2CF2CF3 71.9 50 99 60 99 70 89 24CF3CF2CHFCF2CF2CF3 72.2 50 99 60 99 70 89 24CF2HCF2CF2CF3 21.1 36 90 46 80 54 71 16CF3CHFCF2CF3 22.5 36 90 46 80 55 72 16CF2HCF2CF3 -3.14 28 60 38 50 41 47 -5CF3CHFCF3 -2.99 29 60 39 50 41 47 -5__________________________________________________________________________ TABLE 2__________________________________________________________________________245ea azeotropes at 25.degree. C. 245ea Preferred 245ea More Preferred 245ea Most Preferred AzeoNBP = 40.0 VP = 0.53 atm Compositions (wt. %) Compositions (wt. %) Compositions (wt. NBPSTRUCTURE est. BP (.degree.C.) Upper Lower Upper Lower Upper Lower (.+-.1)__________________________________________________________________________CF3CF2CF2CH2CH3 46.3 1 90 10 88 30 69 34CF3CF2CH2CF2CH3 59.4 1 95 10 93 31 72 35CF3CF2CHFCHFCH3 61.7 1 95 10 93 31 72 35CF2CH2CF2CF2CH3 67.2 1 95 10 93 31 72 35CF3CHFCF2CHFCH3 68 1 95 10 93 31 72 35CF3CHFCHFCF2CH3 72.9 1 97 10 95 31 74 36CF3CF2CHFCH2CH2F 70 1 97 10 95 31 74 36CF3CF2CH2CHFCH2F 75.2 1 97 10 95 31 74 36CF3CHFCF2CH2CH2F 76.8 1 97 10 95 31 74 36CF3CHFCH2CF2CH2F 83.1 1 99 10 97 32 75 37CF3CH2CF2CHFCH2F 84.2 1 99 10 97 32 75 37CF3CH2CHFCF2CH2F 85.4 1 99 10 97 32 75 37CF3CHFCHFCHFCH2F 89.1 1 99 10 97 32 75 37CF3CF2CH2CH2CHF2 72.5 1 97 10 95 31 74 36CF3CH2CH2CF2CHF2 80.4 1 99 10 97 32 75 37CF3CH2CF2CH2CHF2 82 1 99 10 97 32 75 37CF3CHFCHFCH2CHF2 86.5 1 99 10 97 32 75 37CF3CHFCH2CHFCHF2 87.7 1 99 10 97 32 75 37CF3CH2CHFCHFCHF2 90.4 1 99 10 97 32 75 38CF3CH2CH2CHFCF3 72.9 1 97 10 95 31 74 37CF3CH2CHFCH2CF3 75.7 1 97 10 95 31 74 37CH2FCF2CF2CF2CH3 65.4 1 95 10 93 31 72 37CH2FCH2CF2CF2CHF2 79.7 1 99 10 97 32 75 37CH2FCF2CF2CH2CHF2 87.1 1 99 10 97 32 75 38CH2FCF2CH2CF2CHF2 87.2 1 99 10 97 32 75 38CH2FCHFCHFCF2CHF2 92.8 1 99 10 97 32 75 38CH2FCHFCF2CHFCHF2 95 1 99 10 97 32 75 38CH2FCF2CHFCHFCHF2 96.6 1 99 10 97 32 75 38CHF2CF2CF2CHFCH3 69.2 1 95 10 93 31 72 36CHF2CF2CHFCF2CH3 74.8 1 97 10 95 31 74 36CHF2CHFCF2CF2CH3 76.3 1 97 10 95 31 74 36CHF2CF2CHFCH2CHF2 91.9 1 99 10 97 32 75 38CHF2CHFCF2CH2CHF2 94.6 1 99 10 97 32 75 38CHF2CF2CH2CHFCHF2 93.6 1 99 10 97 32 75 38CHF2CHFCHFCHFCHF2 103.4 1 99 10 97 32 75 38CH2FCHFCF2CF2CH2F 85.8 1 99 10 97 32 75 38CH2FCF2CHFCF2CH2F 88.1 1 99 10 97 32 75 38CF3CH2CH2CF3 40.7 1 80 10 78 27 61 34CF3CHFCH2CHF2 50.8 1 90 10 88 30 69 35CF3CH2CHFCHF2 53 1 90 10 88 30 69 35CF3CF2CH2CH2F 37.3 1 70 10 68 25 54 32CF3CHFCHFCH2F 50.8 1 90 10 88 30 69 35CF3CH2CF2CH2F 45.8 1 90 10 88 30 69 35CHF2CH2CF2CHF2 55.7 1 90 10 88 30 69 36CHF2CHFCHFCHF2 65.1 1 85 10 83 28 65 37CHF2CF2CHFCH2F 55.3 1 90 10 88 30 69 36CHF2CHFCF2CH2F 57.5 1 90 10 88 30 69 36CH2FCF2CF2CH2F 49.2 1 90 10 88 30 69 35CHF2CF2CF2CH3 35.8 1 70 10 68 25 54 30CF3CF2CHFCH3 26 1 70 10 68 25 54 23CF3CHFCF2CH3 32 1 70 10 68 25 54 29CF3CHFCHFCF2CHFCH2F 120.9 1 99 10 97 32 75 39CF3CH2CF2CF2CHFCH2F 112.7 1 99 10 97 32 75 39CF3CF2CHFCH2CF2CH2F 106.9 1 99 10 97 32 75 39CF3CHFCF2CH2CF2CH2F 111.2 1 99 10 97 32 75 39CF3CF2CH2CHFCF2CH2F 110.3 1 99 10 97 32 75 39CF3CHFCHFCHFCF2CH2F 121.8 1 99 10 97 32 75 39CF3CH2CF2CFHCF2CH2F 114.2 1 99 10 97 32 75 39CF3CHFCH2CF2CF2CH2F 113.4 1 99 10 97 32 75 39CF3CH2CHFCF2CF2CH2F 113.1 1 99 10 97 32 75 39CF3CHFCH2CF2CHFCHF2 120.9 1 99 10 97 32 75 39CF3CH2CHFCF2CHFCHF2 122.2 1 99 10 97 32 75 39CF2CF2CH2CH2CF2CHF2 104.6 1 99 10 97 32 75 39CF3CHFCHFCH2CF2CHF2 117.8 1 99 10 97 32 75 39CF3CH2CF2CH2CF2CHF2 112.4 1 99 10 97 32 75 39CF3CHFCH2CHFCF2CHF2 117.3 1 99 10 97 32 75 39CF3CH2CH2CF2CF2CHF2 107.3 1 99 10 97 32 75 39CF3CH2CHFCHFCF2CHF2 119.2 1 99 10 97 32 75 39CF3CF2CF2CF2CH2CH3 71.4 1 90 10 88 30 69 37CF3CF2CF2CHFCHFCH3 86 1 90 10 88 30 69 38CF3CF2CHFCF2CHFCH3 93.5 1 99 10 97 32 75 38CF3CHFCF2CF2CHFCH3 94.9 1 99 10 97 32 75 38CF3CF2CF2CH2CF2CH3 82.8 1 99 10 97 32 75 38CF3CF2CHFCHFCF2CH3 97.5 1 99 10 97 32 75 38CF3CHFCF2CHFCF2CH3 99.6 1 99 10 97 32 75 38CF3CF2CH2CF2CF2CH3 93 1 99 10 97 32 75 38CF3CHFCHFCF2CF2CH3 102.3 1 99 10 97 32 75 39CF3CH2CF2CF2CF2CH3 92.4 1 99 10 97 32 75 39CHF2CF2CF2CHFCH2CHF2 117.8 1 99 10 97 32 75 39CHF2CF2CHFCF2CH2CHF2 122.4 1 99 10 97 32 75 39CHF2CHFCF2CF2CH2CHF2 123.1 1 99 10 97 32 75 39CF3CF2CHFCH2CHFCHF2 120.4 1 99 10 97 32 75 39CHF2CF2CHFCHFCHFCHF2 132.1 1 99 10 97 32 75 39CHF2CHFCF2CHFCHFCHF2 133.5 1 99 10 97 32 75 39CGF2CF2CH2CF2CHFCHF2 124.9 1 99 10 97 32 75 39CHF2CF2CHFCH2CF2CHF2 123.1 1 99 10 97 32 75 39CHF2CF2CF2CF2CH2CH2F 104.8 1 99 10 97 32 75 39CHF2CF2CF2CHFCHFCH2F 118.7 1 99 10 97 32 75 39CHF2CF2CHFCF2CHFCH2F 122.9 1 99 10 97 32 75 39CHF2CHFCF2CF2CHFCH2F 121.8 1 99 10 97 32 75 39CHF2CF2CF2CH2CF2CH2F 114.1 1 99 10 97 32 75 39CHF2CF2CHFCHFCF2CH2F 125.4 1 99 10 97 32 75 39CHF2CHFCF2CHFCF2CH2F 125 1 99 10 97 32 75 39CHF2CF2CH2CF2CF2CH2F 117.5 1 99 10 97 32 75 39CHF2CHFCHFCF2CF2CH2F 124.2 1 99 10 97 32 75 39CHF2CH2CF2CF2CF2CH2F 112.2 1 99 10 97 32 75 39CF2HCF2CF2CF2CHFCH3 94.4 1 99 10 97 32 75 39CF2HCF2CF2CHFCF2CH3 100.8 1 99 10 97 32 75 39CHF2CF2CHFCF2CF2CH3 194.2 1 99 10 97 32 75 39CHF2CHFCF2CF2CF2CH3 101.4 1 99 10 97 32 75 39CH2FCF2CF2CF2CF2CH3 90.6 1 99 10 97 32 75 39CH2FCF2CF2CF2CHFCH2F 110.9 1 99 10 97 32 75 39CH2FCF2CF2CHFCF2CH2F 115.9 1 99 10 97 32 75 39CF3CH2CH2CHFCF2CF3 96.7 1 99 10 97 32 75 39CF3CH2CH2CF2CHFCF3 104.4 1 99 10 97 32 75 39CF3CF2CH2CHFCH2CF3 100.7 1 99 10 97 32 75 39CF3CHFCHFCHFCH2CF3 115.5 1 99 10 97 32 75 39CF3CH2CF2CHFCH2CF3 111.4 1 99 10 97 32 75 39CF3CHFCH2CF2CH2CF3 108.4 1 99 10 97 32 75 39CF3CHFCH2CH2CF2CF3 97.1 1 99 10 97 32 75 39CF3CHFCHFCH2CHFCF3 112 1 99 10 97 32 75 39CF3CF2CF2CH2CH2CHF2 95.9 1 99 10 97 32 75 39CF3CF2CHFCHFCH2CHF2 111.2 1 99 10 97 32 75 39CF3CHFCF2CHFCH2CHF2 116.6 1 99 10 97 32 75 39CF3CF2CH2CF2CH2CHF2 107.9 1 99 10 97 32 75 39CF3CHFCHFCF2CH2CHF2 120.5 1 99 10 97 32 75 39CF3CH2CF2CF2CH2CHF2 114 1 99 10 97 32 75 39CF3CF2CHFCH2CHFCHF2 111.5 1 99 10 97 32 75 39CF3CHFCF2CH2CHFCHF2 117.4 1 99 10 97 32 75 39CF3CF2CH2CHFCHFCHF2 115.4 1 99 10 97 32 75 39CF3CHFCHFCHFCHFCHF2 128.5 1 99 10 97 32 75 39CF3CH2CF2CHFCHFCHF2 122.7 1 99 10 97 32 75 39CF3CF2CF2CHFCH2CH2F 94.3 1 99 10 97 32 75 39CF3CF2CHFCF2CH2CH2F 102.3 1 99 10 97 32 75 39CF3CHFCF2CF2CH2CH2F 105.3 1 99 10 97 32 75 39CF3CF2CF2CH2CHFCH2F 98.6 1 99 10 97 32 75 39CF3CF2CHFCHFCHFCH2F 113.8 1 99 10 97 32 75 39CF3CHFCF2CHFCHFCH2F 117.5 1 99 10 97 32 75 39CF3CF2CH2CF2CHFCH2F 110 1 99 10 97 32 75 39CH3CHFCF2CF2CF3 50.2 1 90 10 88 30 69 35CH3CF2CFHCF2CF3 57.5 1 90 10 88 30 69 35CH3CF2CF2CHFCF3 60.9 1 95 10 93 31 72 36CH2FCH2CF2CF2CF3 60.7 1 95 10 93 31 72 36CH2FCHFCHFCF2CF3 75.5 1 95 10 93 31 72 37CH2FCHFCF2CHFCF3 80.1 1 97 10 95 31 74 38CH2FCF2CH2CF2CF3 71.6 1 95 10 93 31 72 37CH2FCF2CHFCHFCF3 83.5 1 99 10 97 32 75 38CH2FCF2CF2CH2CF3 76.1 1 95 10 93 31 72 37CF2HCH2CHFCF2CF3 74.6 1 95 10 93 31 72 38CF2HCH2CF2CHFCF3 79.7 1 95 10 93 31 72 38CF2HCHFCH2CF2CF3 77.9 1 95 10 93 31 72 38CF2HCHFCHFCHFCF3 90.2 1 99 10 97 32 75 38CF2HCHFCF2CH2CF3 83.5 1 99 10 97 32 75 38CF2HCF2CH2CFHCF3 82 1 99 10 97 32 75 38CF2HCF2CHFCH2CF3 82.6 1 99 10 97 32 75 38CF3CH2CH2CF2CF3 64.8 1 95 10 93 31 72 37CF3CH2CHFCHFCF3 77.2 1 95 10 93 31 72 38CF3CH2CF2CH2CF3 71 1 95 10 93 31 72 37CF3CHFCH2CHFCF3 76.2 1 95 10 93 31 72 38CH2FCF2CHFCF2CF2H 85.4 1 99 10 97 32 75 38CH2FCF2CF2CHFCF2H 85.2 1 99 10 97 32 75 38CH2FCHFCF2CF2CF2H 81.3 1 99 10 97 32 75 38CH3CF2CF2CF2CF2H 60.9 1 95 10 93 31 72 36CF2HCH2CF2CF2CF2H 82.6 1 99 10 97 32 75 38CF2HCHFCHFCF2CF2H 93.8 1 99 10 97 32 75 39CF2HCHFCF2CHFCF2H 94.3 1 99 10 97 32 75 39CF2HCF2CH2CF2CF2H 86.1 1 99 10 97 32 75 38CH2FCF2CF2CF2CH2F 74.3 1 95 10 93 31 72 37CF3CF2CF2CH2CH2CF3 88.3 1 99 10 97 32 75 38CF3CF2CHFCHFCH2CF3 101.9 1 99 10 97 32 75 39CF3CHFCF2CHFCH2CF3 107.3 1 99 10 97 32 75 39CF3CF2CH2CF2CH2CF3 96.9 1 99 10 97 32 75 39CF3CHFCHFCF2CH2CF3 109.5 1 99 10 97 32 75 39CF3CH2CF2CF2CH2CF3 103 1 99 10 97 32 75 39CF3CHFCH2CHFCF2CF3 100 1 99 10 97 32 75 39CF3CHFCH2CF2CHFCF3 10.6 1 99 10 97 32 75 39CF3CHFCHFCH2CF2CF3 102.2 1 99 10 97 32 75 39CF3CHFCHFCHFCHFCF3 115.3 1 99 10 97 32 75 39CF3CF2CH2CH2CF2CF3 89 1 99 10 97 32 75 38CF3CF2CF2CHFCH2CHF2 98.8 1 99 10 97 32 75 39CF3CF2CHFCF2CH2CHF2 105.1 1 99 10 97 32 75 39CF3CHFCF2CF2CHFCHF2 108.2 1 99 10 97 32 75 39CF3CF2CF2CH2CHFCHF2 101.4 1 99 10 97 32 75 39CF3CF2CHFCHFCHFCHF2 114.8 1 99 10 97 32 75 39CF3CHFCF2CHFCHFCHF2 118.6 1 99 10 97 32 75 39CF3CF2CH2CF2CHFCHF2 109.4 1 99 10 97 32 75 39CF3CHFCHFCF2CHFCHF2 120.3 1 99 10 97 32 75 39CF3CH2CF2CF2CHFCHF2 112.1 1 99 10 97 32 75 39CF3CF2CHFCH2CF2CHF2 105.8 1 99 10 97 32 75 39CF3CHFCF2CH2CF2CHF2 110.1 1 99 10 97 32 75 39CF3CF2CH2CHFCF2CHF2 107.5 1 99 10 97 32 75 39CF3CHFCHFCHFCF2CHF2 118.9 1 99 10 97 32 75 39CF3CH2CF2CHFCF2CHF2 111.4 1 99 10 97 32 75 39CF3CHFCH2CF2CF2CHF2 108.9 1 99 10 97 32 75 39CF3CH2CHFCF2CF2CHF2 108.5 1 99 10 97 32 75 39CF3CF2CF2CF2CH2CH2F 85.8 1 99 10 97 32 75 38CF3CF2CF2CHFCHFCH2F 99.7 1 99 10 97 32 75 39CF3CF2CHFCF2CHFCH2F 105.6 1 99 10 97 32 75 39CF3CHFCF2CF2CHFCH2F 106.9 1 99 10 97 32 75 39CF3CF2CF2CH2CF2CH2F 95.1 1 99 10 97 32 75 39CF3CF2CHFCHFCF2CH2F 108.1 1 99 10 97 32 75 39CF3CHFCF2CHFCF2CH2F 110.1 1 99 10 97 32 75 39CF3CF2CH2CF2CF2CH2F 101.9 1 99 10 97 32 75 39CF3CHFCHFCF2CF2CH2F 111.4 1 99 10 97 32 75 39CHF2CF2CHFCF2CF2CH2F 101.2 1 99 10 97 32 75 39CF3CF2CF2CF2CHFCH3 75.4 1 99 10 97 32 75 37CF3CF2CF2CHFCF2CH3 81.8 1 99 10 97 32 75 38CF3CF2CHFCF2CF2CH3 86.9 1 99 10 97 32 75 38CF3CHFCF2CF2CF2CH3 86.6 1 99 10 97 32 75 38CHF2CF2CF2CHFCHFCHF2 119.8 1 99 10 97 32 75 39CHF2CF2CHFCF2CHFCHF2 122.2 1 99 10 97 32 75 39CHF2CHFCF2CF2CHFCHF2 121.2 1 99 10 97 32 75 39CHF2CF2CF2CH2CF2CHF2 113 1 99 10 97 32 75 39CHF2CF2CHFCHFCF2CHF2 122.6 1 99 10 97 32 75 39CHF2CH2CF2CF2CF2CHF2 107.7 1 99 10 97 32 75 39CHF2CF2CF2CF2CHFCH2F 106.4 1 99 10 97 32 75 39CHF2CF2CF2CHFCF2CH2F 111.4 1 99 10 97 32 75 39CHF2CF2CHFCF2CF2CH2F 113.1 1 99 10 97 32 75 39CHF2CHFCF2CF2CF2CH2F 110.3 1 99 10 97 32 75 39CH2FCF2CF2CF2CF2CH2F 99.4 1 99 10 97 32 75 39CHFCF2CF2CF2CF2CH3 86.1 1 99 10 97 32 75 38CH3CF2CF2CF3 16.8 1 50 10 48 20 39 15CH2FCHFCF2CF3 38 1 70 10 68 25 54 34CH2FCF2CHFCF3 42.6 1 75 10 73 26 57 34CH2FCF2CH2CF3 44.7 1 75 10 73 26 57 34CF2HCH2CF2CF3 40.2 1 75 10 73 26 57 34CF2HCHFCHFCF3 51.9 1 75 10 73 26 57 35CF3CH2CHFCF3 41.5 1 75 10 73 26 57 34CH2FCF2CF2CF2H 44.7 1 75 10 73 26 57 34CF2HCHFCF2CF2H 54.7 1 75 10 73 26 57 35CF3CF2CHFCH2CF3 65.3 1 95 10 93 31 72 36CF3CH2CF2CHFCF3 68.6 1 95 10 93 31 72 36CF3CHFCH2CF2CF3 66.5 1 95 10 93 31 72 36CF3CHFCHFCHFCF3 77 1 95 10 93 31 72 37CF3CH2CF2CF2CHF2 71.6 1 95 10 93 31 72 37CF3CHFCHFCF2CHF2 80.6 1 99 10 97 32 75 38CF3CF2CH2CF2CHF2 70.5 1 95 10 93 31 72 37CF3CHFCF2CHFCHF2 79.5 1 95 10 93 31 72 38CF3CF2CHFCHFCHF2 76.5 1 95 10 93 31 72 38CF3CF2CF2CH2CHF2 63.6 1 90 10 88 30 69 37CF3CF2CF2CHFCH2F 62.3 1 90 10 88 30 69 37CF3CF2CHFCF2CH2F 68.1 1 90 10 88 30 69 37CF3CHFCF2CF2CH2F 70.3 1 90 10 88 30 69 37CF3CF2CF2CF2CH3 41.9 1 80 10 78 27 61 34CHF2CF2CF2CHFCHF2 80.7 1 99 10 97 32 75 38CHF2CF2CHFCF2CHF2 82.6 1 99 10 97 32 75 38CHF2CF2CF2CF2CH2F 69.8 1 95 10 93 31 72 37CH3(CF2)4CF3 67.1 1 95 10 93 31 72 37CH2FCHF(CF2)3CF3 87.4 1 99 10 97 32 75 38CH2FCF2CHFCF2CF2CF3 92.3 1 99 10 97 32 75 39CH2FCF2CF2CHFCF2CF3 95.8 1 99 10 97 32 75 39CH2F(CF2)3CHFCF3 95.4 1 99 10 97 32 75 39CF2HCH2(CF2)3CF3 88.7 1 99 10 97 32 75 38CF2HCHFCHFCF2CF2CF3 100.8 1 99 10 97 32 75 39CF2HCHFCF2CHFCF2CF3 104.9 1 99 10 97 32 75 39CF2HCHFCF2CF2CHFCF3 106.3 1 99 10 97 32 75 39CF2HCF2CH2CF2CF2CF3 94 1 99 10 97 32 75 39CF2HCF2CHFCHFCF2CF3 105.3 1 99 10 97 32 75 39CF2HCF2CHFCF2CHFCF3 107.3 1 99 10 97 32 75 39CF2HCF2CF2CH2CF2CF3 97.4 1 99 10 97 32 75 39CF2HCF2CF2CHFCHFCF3 106.6 1 99 10 97 32 75 39CF2H(CF2)3CH2CF3 96.7 1 99 10 97 32 75 39CF3CH2CHFCF2CF2CF3 89.5 1 99 10 97 32 75 39CF3CH2CF2CHFCF2CF3 94.1 1 99 10 97 32 75 39CF3CHFCF2CF2CH2CF3 97.2 1 99 10 97 32 75 39CF3CF2CF2CH2CHFCF3 89.9 1 99 10 97 32 75 39CF3CHFCHFCHFCF2CF3 101.6 1 99 10 97 32 75 39CF3CHFCF2CHFCHFCF3 105.4 1 99 10 97 32 75 39CF3CHFCF2CH2CF2CF3 94.5 1 99 10 97 32 75 39CF3CF2CH2CHFCF2CF3 90.2 1 99 10 97 32 75 39CH2F(CF2)4CF2H 94.9 1 99 10 97 32 75 39CF2HCHF(CF2)3CF2H 105.8 1 99 10 97 32 75 39CF2HCF2CHFCF2CF2CF2H 108.5 1 99 10 97 32 75 39CF3CHFCHFCF3 38.7 1 70 10 68 25 54 33CF3CF2CF2CH2F 25.7 1 60 10 58 22 46 22CF3CF2CHFCHF2 37.4 1 70 10 68 25 54 32CF3CHFCF2CHF2 39.8 1 70 10 68 25 54 34CF3CF2CH2CHF2 29.1 1 70 10 68 25 54 26CHF2CF2CF2CHF2 40.1 1 70 10 68 25 54 34CH2FCF2CF2CH2CF3 50.8 1 90 10 88 30 69 35CF2HCHFCF2CF2CF3 61.7 1 95 10 93 31 72 36CF2HCF2CHFCF2CF3 65.3 1 95 10 93 31 72 36CF2HCF2CF2CHFCF3 65.8 1 95 10 93 31 72 36CF3CH2CF2CF2CF3 52.6 1 95 10 93 31 72 35CF3CF2CHFCHFCF3 63.3 1 95 10 93 31 72 36CF3CHFCF2CHFCF3 64.6 1 95 10 93 31 72 36CF3CF2CH2CF2CF3 55 1 95 10 93 31 72 35CF2HCF2CF2CF2CF2H 65.3 1 95 10 93 31 72 36CF3CF2CHFCHFCF2CF3 88 1 99 10 97 32 75 39CF3CF2CF2CH2CF2CF3 78.4 1 99 10 97 32 75 39CF3CHFCF2CF2CHFCF3 91.4 1 99 10 97 32 75 39CF3CF2CHFCF2CHFCF3 90 1 99 10 97 32 75 39CF3CHFCHFCF2CF2CF3 87.6 1 99 10 97 32 75 39CF3CF2CF2CF2CH2CF3 77.7 1 99 10 97 32 75 39CF3CF2CF2CF2CHFCHF2 86.8 1 99 10 97 32 75 39CF3CF2CF2CHFCF2CHF2 89.5 1 99 10 97 32 75 39CF3CF2CHFCF2CF2CHF2 91.2 1 99 10 97 32 75 39CF3CHFCF2CF2CF2CHF2 90.9 1 99 10 97 32 75 39CF3CF2CF2CF2CF2CH2F 75.9 1 99 10 97 32 75 37CF2HCF2CF2CF2CF2CHF2 90.4 1 99 10 97 32 75 39CF2HCF2CF2CF2CF2CF3 71.4 1 95 10 93 31 72 37CF3CHFCF2CF2CF2CF3 71.9 1 95 10 93 31 72 37CF3CF2CHFCF2CF2CF3 72.2 1 95 10 93 31 72 37CF2HCF2CF2CF3 21.1 20 70 30 68 40 59 19CF3CHFCF2CF3 22.5 20 70 30 68 40 59 20CF2HCF2CF3 -3.14 10 50 20 48 27 41 -2CF3CHFCF3 -2.99 10 50 20 48 27 41 -2__________________________________________________________________________ TABLE 3__________________________________________________________________________ 245eb 245eb More 245eb Most Preferred Preferred Preferred245eb azeotropes Compositions Compositions Compositions AzeoNBP (22.7.degree. C.) VP = 1.08 atm (wt. %) (wt. %) (wt. %) BP (.degree.C.)STRUCTURE est. BP (.degree.C.) Lower Upper Lower Upper Lower Upper (.+-.1)__________________________________________________________________________CF3CF2CF2CH2CH3 46.3 1 99 10 99 32 77 17CF3CF2CH2CF2CH3 59.4 1 99 10 99 32 77 19CF3CF2CF2CF2CH3 61.7 1 99 10 99 32 77 20CF2CH2CF2CF2CH3 67.2 1 99 10 99 32 77 20CF3CHFCF2CHFCH3 68 1 99 10 99 32 77 20CF3CHFCHFCF2CH3 72.9 1 99 10 99 32 77 21CF3CF2CHFCH2CH2F 70 1 99 10 99 32 77 21CF3CF2CH2CHFCH2F 75.2 1 99 10 99 32 77 21CF3CHFCF2CH2CH2F 76.8 1 99 10 99 32 77 21CF3CHFCH2CF2CH2F 83.1 1 99 10 99 32 77 21CF3CH2CF2CHFCH2F 84.2 1 99 10 99 32 77 21CF3CH2CHFCF2CH2F 85.4 1 99 10 99 32 77 21CF3CHFCHFCHFCH2F 89.1 1 99 10 99 32 77 21CF3CF2CH2CH2CHF2 72.5 1 99 10 99 32 77 21CF3CH2CH2CF2CHF2 80.4 1 99 10 99 32 77 21CF3CH2CF2CH2CHF2 82 1 99 10 99 32 77 21CF3CHFCHFCH2CHF2 86.5 1 99 10 99 32 77 21CF3CHFCH2CHFCHF2 87.7 1 99 10 99 32 77 21CF3CH2CHFCHFCHF2 90.4 1 99 10 99 32 77 21CF3CH2CH2CHFCF3 72.9 1 99 10 99 32 77 21CF3CH2CHFCH2CF3 75.7 1 99 10 99 32 77 21CH2FCF2CF2CF2CH3 65.4 1 99 10 99 32 77 21CH2FCH2CF2CF2CHF2 79.7 1 99 10 99 32 77 21CH2FCF2CF2CH2CHF2 87.1 1 99 10 99 32 77 21CH2FCF2CH2CF2CHF2 87.2 1 99 10 99 32 77 21CH2FCHFCHFCF2CHF2 92.8 1 99 10 99 32 77 21CH2FCHFCF2CHFCHF2 95 1 99 10 99 32 77 21CH2FCF2CHFCHFCHF2 96.6 1 99 10 99 32 77 21CHF2CF2CF2CHFCH3 69.2 1 99 10 99 32 77 20CHF2CF2CHFCF2CH3 74.8 1 99 10 99 32 77 21CHF2CHFCF2CF2CH3 76.3 1 99 10 99 32 77 21CHF2CF2CHFCH2CHF2 91.9 1 99 10 99 32 77 21CHF2CHFCF2CH2CHF2 94.6 1 99 10 99 32 77 21CHF2CF2CH2CHFCHF2 93.6 1 99 10 99 32 77 21CHF2CHFCHFCHFCHF2 103.4 1 99 10 99 32 77 21CH2FCHFCF2CF2CH2F 85.8 1 99 10 99 32 77 21CH2FCF2CHFCF2CH2F 88.1 1 99 10 99 32 77 21CF3CH2CH2CF3 40.7 1 99 10 99 32 77 17CF3CHFCH2CHF2 50.8 1 99 10 99 32 77 18CF3CH2CHFCHF2 53 1 99 10 99 32 77 18CF3CF2CH2CH2F 37.3 1 99 10 99 32 77 17CF3CHFCHFCH2F 50.8 1 99 10 99 32 77 18CF3CH2CF2CH2F 45.8 1 99 10 99 32 77 17CHF2CH2CF2CHF2 55.7 1 99 10 99 32 77 19CHF2CHFCHFCHF2 65.1 1 99 10 99 32 77 20CHF2CF2CHFCH2F 55.3 1 99 10 99 32 77 19CHF2CHFCF2CH2F 57.5 1 99 10 99 32 77 19CH2FCF2CF2CH2F 49.2 1 99 10 99 32 77 18CHF2CF2CF2CH3 35.8 1 99 10 99 32 77 17CF3CF2CHFCH3 26 1 95 10 95 31 74 16CF3CHFCF2CH3 32 1 95 10 95 31 74 17CF3CHFCHFCF2CHFCH2F 120.9 1 99 10 99 32 77 21CF3CH2CF2CF2CHFCH2F 112.7 1 99 10 99 32 77 21CF3CF2CHFCH2CF2CH2F 106.9 1 99 10 99 32 77 21CF3CHFCF2CH2CF2CH2F 111.2 1 99 10 99 32 77 21CF3CF2CH2CHFCF2CH2F 110.3 1 99 10 99 32 77 21CF3CHFCHFCHFCF2CH2F 121.8 1 99 10 99 32 77 21CF3CH2CF2CFHCF2CH2F 114.2 1 99 10 99 32 77 21CF3CHFCH2CF2CF2CH2F 113.4 1 99 10 99 32 77 21CF3CH2CHFCF2CF2CH2F 113.1 1 99 10 99 32 77 21CF3CHFCH2CF2CHFCHF2 120.9 1 99 10 99 32 77 21CF3CH2CHFCF2CHFCHF2 122.2 1 99 10 99 32 77 21CF2CF2CH2CH2CF2CHF2 104.6 1 99 10 99 32 77 21CF3CHFCHFCH2CF2CHF2 117.8 1 99 10 99 32 77 21CF3CH2CF2CH2CF2CHF2 112.4 1 99 10 99 32 77 21CF3CHFCH2CHFCF2CHF2 117.3 1 99 10 99 32 77 21CF3CH2CH2CF2CF2CHF2 107.3 1 99 10 99 32 77 21CF3CH2CHFCHFCF2CHF2 119.2 1 99 10 99 32 77 21CF3CF2CF2CF2CH2CH3 71.4 1 99 10 99 32 77 21CF3CF2CF2CHFCHFCH3 86 1 99 10 99 32 77 21CF3CF2CHFCF2CHFCH3 93.5 1 99 10 99 32 77 21CF3CHFCF2CF2CHFCH3 94.9 1 99 10 99 32 77 21CF3CF2CF2CH2CF2CH3 82.8 1 99 10 99 32 77 21CF3CF2CHFCHFCF2CH3 97.5 1 99 10 99 32 77 21CF3CHFCF2CHFCF2CH3 99.6 1 99 10 99 32 77 21CF3CF2CH2CF2CF2CH3 93 1 99 10 99 32 77 21CF3CHFCHFCF2CF2CH3 102.3 1 99 10 99 32 77 21CF3CH2CF2CF2CF2CLI3 92.4 1 99 10 99 32 77 21CHF2CF2CF2CHFCH2CHF2 117.8 1 99 10 99 32 77 21CHF2CF2CHFCF2CH2CHF2 122.4 1 99 10 99 32 77 21CHF2CHFCF2CF2CH2CHF2 123.1 1 99 10 99 32 77 21CF3CF2CHFCH2CHFCHF2 120.4 1 99 10 99 32 77 21CHF2CF2CHFCHFCHFCHF2 132.1 1 99 10 99 32 77 21CHF2CHFCF2CHFCHFCHF2 133.5 1 99 10 99 32 77 21CGF2CF2CH2CF2CHFCHF2 124.9 1 99 10 99 32 77 21CHF2CF2CHFCH2CF2CHF2 123.1 1 99 10 99 32 77 21CHF2CF2CF2CF2CH2CH2F 104.8 1 99 10 99 32 77 21CHF2CF2CF2CHFCHFCH2F 118.7 1 99 10 99 32 77 21CHF2CF2CHFCF2CHFCH2F 122.9 1 99 10 99 32 77 21CHF2CHFCF2CF2CHFCH2F 121.8 1 99 10 99 32 77 21CHF2CF2CF2CH2CF2CH2F 114.1 1 99 10 99 32 77 21CHF2CF2CHFCHFCF2CH2F 125.4 1 99 10 99 32 77 21CHF2CHFCF2CHFCF2CH2F 125 1 99 10 99 32 77 21CHF2CF2CH2CF2CF2CH2F 117.5 1 99 10 99 32 77 21CHF2CHFCHFCF2CF2CH2F 124.2 1 99 10 99 32 77 21CHF2CH2CF2CF2CF2CH2F 112.2 1 99 10 99 32 77 21CF2HCF2CF2CF2CHFCH3 94.4 1 99 10 99 32 77 21CF2HCF2CF2CHFCF2CH3 100.8 1 99 10 99 32 77 21CHF2CF2CHFCF2CF2CH3 104.2 1 99 10 99 32 77 21CHF2CHFCF2CF2CF2CH3 101.4 1 99 10 99 32 77 21CH2FCF2CF2CF2CF2CH3 90.6 1 99 10 99 32 77 21CH2FCF2CF2CF2CHFCH2F 110.9 1 99 10 99 32 77 21CH2FCF2CF2CHFCF2CH2F 115.9 1 99 10 99 32 77 21CF3CH2CH2CHFCF2CF3 96.7 1 99 10 99 32 77 21CF3CH2CH2CF2CHFCF3 104.4 1 99 10 99 32 77 21CF3CF2CH2CHFCH2CF3 100.7 1 99 10 99 32 77 21CF3CHFCHFCHFCH2CF3 115.5 1 99 10 99 32 77 21CF3CH2CF2CHFCH2CF3 111.4 1 99 10 99 32 77 21CF3CHFCH2CF2CH2CF3 108.4 1 99 10 99 32 77 21CF3CHFCH2CH2CF2CF3 97.1 1 99 10 99 32 77 21CF3CHFCHFCH2CHFCF3 112 1 99 10 99 32 77 21CF3CF2CF2CH2CH2CHF2 95.9 1 99 10 99 32 77 21CF3CF2CHFCHFCH2CHF2 111.2 1 99 10 99 32 77 21CF3CHFCF2CHFCH2CHF2 116.6 1 99 10 99 32 77 21CF3CF2CH2CF2CH2CHF2 107.9 1 99 10 99 32 77 21CF3CHFCHFCF2CH2CHF2 120.5 1 99 10 99 32 77 21CF3CH2CF2CF2CH2CHF2 114 1 99 10 99 32 77 21CF3CF2CHFCH2CHFCHF2 111.5 1 99 10 99 32 77 21CF3CHFCF2CH2CHFCHF2 117.4 1 99 10 99 32 77 21CF3CF2CH2CHFCHFCHF2 115.4 1 99 10 99 32 77 21CF3CHFCHFCHFCHFCHF2 128.5 1 99 10 99 32 77 21CF3CH2CF2CHFCHFCHF2 122.7 1 99 10 99 32 77 21CF3CF2CF2CHFCH2CH2F 94.3 1 99 10 99 32 77 21CF3CF2CHFCF2CH2CH2F 102.3 1 99 10 99 32 77 21CF3CHFCF2CF2CH2CH2F 105.3 1 99 10 99 32 77 21CF3CF2CF2CH2CHFCH2F 98.6 1 99 10 99 32 77 21CF3CF2CHFCHFCHFCH2F 113.8 1 99 10 99 32 77 21CF3CHFCF2CHFCHFCH2F 117.5 1 99 10 99 32 77 21CF3CF2CH2CF2CHFCH2F 110 1 99 10 99 32 77 21CH3CHFCF2CF2CF3 50.2 1 99 10 99 32 77 19CH3CF2CFHCF2CF3 57.5 1 99 10 99 32 77 19CH3CF2CF2CHFCF3 60.9 1 99 10 99 32 77 20CH2FCH2CF2CF2CF3 60.7 1 99 10 99 32 77 20CH2FCHFCHFCF2CF3 75.5 1 99 10 99 32 77 21CH2FCHFCF2CHFCF3 80.1 1 99 10 99 32 77 21CH2FCF2CH2CF2CF3 71.6 1 99 10 99 32 77 21CH2FCF2CHFCHFCF3 83.5 1 99 10 99 32 77 21CH2FCF2CF2CH2CF3 76.1 1 99 10 99 32 77 21CF2HCH2CHFCF2CF3 74.6 1 99 10 99 32 77 21CF2HCH2CF2CHFCF3 79.7 1 99 10 99 32 77 21CF2HCHFCH2CF2CF3 77.9 1 99 10 99 32 77 21CF2HCHFCHFCHFCF3 90.2 1 99 10 99 32 77 21CF2HCHFCF2CH2CF3 83.5 1 99 10 99 32 77 21CF2HCF2CH2CFHCF3 82 1 99 10 99 32 77 21CF2HCF2CHFCH2CF3 82.6 1 99 10 99 32 77 21CF3CH2CH2CF2CF3 64.8 1 99 10 99 32 77 21CF3CH2CHFCHFCF3 77.2 1 99 10 99 32 77 21CF3CH2CF2CH2CF3 71 1 99 10 99 32 77 21CF3CHFCH2CHFCF3 76.2 1 99 10 99 32 77 21CH2FCF2CHFCF2CF2H 85.4 1 99 10 99 32 77 21CH2FCF2CF2CHFCF2H 85.2 1 99 10 99 32 77 21CH2FCHFCF2CF2CF2H 81.3 1 99 10 99 32 77 21CH3CF2CF2CF2CF2H 60.9 1 99 10 99 32 77 20CF2HCH2CF2CF2CF2H 82.6 1 99 10 99 32 77 21CF2HCHFCHFCF2CF2H 93.8 1 99 10 99 32 77 21CF2HCHFCF2CHFCF2H 94.3 1 99 10 99 32 77 21CF2HCF2CH2CF2CF2H 86.1 1 99 10 99 32 77 21CH2FCF2CF2CF2CH2F 74.3 1 99 10 99 32 77 21CF3CF2CF2CH2CH2CF3 88.3 1 99 10 99 32 77 21CF3CF2CHFCHFCH2CF3 101.9 1 99 10 99 32 77 21CF3CHFCF2CHFCH2CF3 107.3 1 99 10 99 32 77 21CF3CF2CH2CF2CH2CF3 96.9 1 99 10 99 32 77 21CF3CHFCHFCF2CH2CF3 109.5 1 99 10 99 32 77 21CF3CH2CF2CF2CH2CF3 103 1 99 10 99 32 77 21CF3CHFCH2CHFCF2CF3 100 1 99 10 99 32 77 21CF3CHFCH2CF2CHFCF3 10.6 1 99 10 99 32 77 21CF3CHFCHFCH2CF2CF3 102.2 1 99 10 99 32 77 21CF3CHFCHFCHFCHFCF3 115.3 1 99 10 99 32 77 21CF3CF2CH2CH2CF2CF3 89 1 99 10 99 32 77 21CF3CF2CF2CHFCH2CHF2 98.8 1 99 10 99 32 77 21CF3CF2CHFCF2CH2CHF2 105.1 1 99 10 99 32 77 21CF3CHFCF2CF2CHFCHF2 108.2 1 99 10 99 32 77 21CF3CF2CF2CH2CHFCHF2 101.4 1 99 10 99 32 77 21CF3CF2CHFCHFCHFCHF2 114.8 1 99 10 99 32 77 21CF3CHFCF2CHFCHFCHF2 118.6 1 99 10 99 32 77 21CF3CF2CH2CF2CHFCHF2 109.4 1 99 10 99 32 77 21CF3CHFCHFCF2CHFCHF2 120.3 1 99 10 99 32 77 21CF3CH2CF2CF2CHFCHF2 112.1 1 99 10 99 32 77 21CF3CF2CHFCH2CF2CHF2 105.8 1 99 10 99 32 77 21CF3CHFCF2CH2CF2CHF2 110.1 1 99 10 99 32 77 21CF3CF2CH2CHFCF2CHF2 107.5 1 99 10 99 32 77 21CF3CHFCHFCHFCF2CHF2 118.9 1 99 10 99 32 77 21CF3CH2CF2CHFCF2CHF2 111.4 1 99 10 99 32 77 21CF3CHFCH2CF2CF2CHF2 108.9 1 99 10 99 32 77 21CF3CH2CHFCF2CF2CHF2 108.5 1 99 10 99 32 77 21CF3CF2CF2CF2CH2CH2F 85.8 1 99 10 99 32 77 21CF3CF2CF2CHFCHFCH2F 99.7 1 99 10 99 32 77 21CF3CF2CHFCF2CHFCH2F 105.6 1 99 10 99 32 77 21CF3CHFCF2CF2CHFCH2F 106.9 1 99 10 99 32 77 21CF3CF2CF2CH2CF2CH2F 95.1 1 99 10 99 32 77 21CF3CF2CHFCHFCF2CH2F 108.1 1 99 10 99 32 77 21CF3CHFCF2CHFCF2CH2F 110.1 1 99 10 99 32 77 21CF3CF2CH2CF2CF2CH2F 101.9 1 99 10 99 32 77 21CF3CHFCHFCF2CF2CH2F 111.4 1 99 10 99 32 77 21CHF2CF2CHFCF2CH2CH2F 101.2 1 99 10 99 32 77 21CF3CF2CF2CF2CHFCH3 75.4 1 99 10 99 32 77 21CF3CF2CF2CHFCF2CH3 81.8 1 99 10 99 32 77 21CF3CF2CHFCF2CF2CH3 86.9 1 99 10 99 32 77 21CF3CHFCF2CF2CF2CH3 86.6 1 99 10 99 32 77 21CHF2CF2CF2CHFCHFCHF2 119.8 1 99 10 99 32 77 21CHF2CF2CHFCF2CHFCHF2 122.2 1 99 10 99 32 77 21CHF2CHFCF2CF2CHFCHF2 121.2 1 99 10 99 32 77 21CHF2CF2CF2CH2CF2CHF2 113 1 99 10 99 32 77 21CHF2CF2CHFCHFCF2CHF2 122.6 1 99 10 99 32 77 21CHF2CH2CF2CF2CF2CHF2 107.7 1 99 10 99 32 77 21CHF2CF2CF2CF2CHFCH2F 106.4 1 99 10 99 32 77 21CHF2CF2CF2CHFCF2CH2F 111.4 1 99 10 99 32 77 21CHF2CF2CHFCF2CF2CH2F 113.1 1 99 10 99 32 77 21CHF2CHFCF2CF2CF2CH2F 110.3 1 99 10 99 32 77 21CH2FCF2CF2CF2CF2CH2F 99.4 1 99 10 99 32 77 21CHFCF2CF2CF2CF2CH3 86.1 1 99 10 99 32 77 21CH3CF2CF2CF3 16.8 1 80 10 80 28 63 10CH2FCHFCF2CF3 38 1 95 10 95 31 74 16CH2FCF2CHFCF3 42.6 1 99 10 99 32 77 17CH2FCF2CH2CF3 44.7 1 99 10 99 32 77 17CF2HCH2CF2CF3 40.2 1 99 10 99 32 77 17CF2HCHFCHFCF3 51.9 1 99 10 99 32 77 18CF3CH2CHFCF3 41.5 1 99 10 99 32 77 17CH2FCF2CF2CF2H 44.7 1 99 10 99 32 77 17CF2HCHFCF2CF2H 54.7 1 99 10 99 32 77 18CF3CF2CHFCH2CF3 65.3 1 99 10 99 32 77 21CF3CH2CF2CHFCF3 68.6 1 99 10 99 32 77 21CF3CHFCH2CF2CF3 66.5 1 99 10 99 32 77 21CF3CHFCHFCHFCF3 77 1 99 10 99 32 77 21CF3CH2CF2CF2CHF2 71.6 1 99 10 99 32 77 21CF3CHFCHFCF2CHF2 80.6 1 99 10 99 32 77 21CF3CF2CH2CF2CHF2 70.5 1 99 10 99 32 77 21CF3CHFCF2CHFCHF2 79.5 1 99 10 99 32 77 21CF3CF2CHFCHFCHF2 76.5 1 99 10 99 32 77 21CF3CF2CF2CH2CHF2 63.6 1 99 10 99 32 77 21CF3CF2CF2CHFCH2F 62.3 1 99 10 99 32 77 21CF3CF2CHFCF2CH2F 68.1 1 99 10 99 32 77 21CF3CHFCF2CF2CH2F 70.3 1 99 10 99 32 77 21CF3CF2CF2CF2CH3 41.9 1 99 10 99 32 77 21CHF2CF2CF2CHFCHF2 80.7 1 99 10 99 32 77 21CHF2CF2CHFCF2CHF2 82.6 1 99 10 99 32 77 21CHF2CF2CF2CF2CH2F 69.8 1 99 10 99 32 77 21CH3(CF2)4CF3 67.1 1 99 10 99 32 77 21CH2FCHF(CF2)3CF3 87.4 1 99 10 99 32 77 21CH2FCF2CHFCF2CF2CF3 92.3 1 99 10 99 32 77 21CH2FCF2CF2CHFCF2CF3 95.8 1 99 10 99 32 77 21CH2F(CF2)3CHFCF3 95.4 1 99 10 99 32 77 21CF2HCH2(CF2)3CF3 88.7 1 99 10 99 32 77 21CF2HCHFCHFCF2CF2CF3 100.8 1 99 10 99 32 77 21CF2HCHFCF2CHFCF2CF3 104.9 1 99 10 99 32 77 21CF2HCHFCF2CF2CHFCF3 106.3 1 99 10 99 32 77 21CF2HCF2CH2CF2CF2CF3 94 1 99 10 99 32 77 21CF2HCF2CHFCHFCF2CF3 105.3 1 99 10 99 32 77 21CF2HCF2CHFCF2CHFCF3 107.3 1 99 10 99 32 77 21CF2HCF2CF2CH2CF2CF3 97.4 1 99 10 99 32 77 21CF2HCF2CF2CHFCHFCF3 106.6 1 99 10 99 32 77 21CF2H(CF2)3CH2CF3 96.7 1 99 10 99 32 77 21CF3CH2CHFCF2CF2CF3 89.5 1 99 10 99 32 77 21CF3CH2CF2CHFCF2CF3 94.1 1 99 10 99 32 77 21CF3CHFCF2CF2CH2CF3 97.2 1 99 10 99 32 77 21CF3CF2CF2CH2CHFCF3 89.9 1 99 10 99 32 77 21CF3CHFCHFCHFCF2CF3 101.6 1 99 10 99 32 77 21CF3CHFCF2CHFCHFCF3 105.4 1 99 10 99 32 77 21CF3CHFCF2CH2CF2CF3 94.5 1 99 10 99 32 77 21CF3CF2CH2CHFCF2CF3 90.2 1 99 10 99 32 77 21CH2F(CF2)4CF2H 94.9 1 99 10 99 32 77 21CF2HCHF(CF2)3CF2H 105.8 1 99 10 99 32 77 21CF2HCF2CHFCF2CF2CF2H 108.5 1 99 10 99 32 77 21CF3CHFCHFCF3 38.7 1 95 10 95 31 74 17CF3CF2CF2CH2F 25.7 1 90 10 90 30 70 16CF3CF2CHFCHF2 37.4 1 95 10 95 31 74 17CF3CHFCF2CHF2 39.8 1 95 10 95 31 74 17CF3CF2CH2CHF2 29.1 1 90 10 90 30 70 16CHF2CF2CF2CHF2 40.1 1 95 10 95 31 74 17CH2FCF2CF2CH2CF3 50.8 1 99 10 99 32 77 18CF2HCHFCF2CF2CF3 61.7 1 99 10 99 32 77 19CF2HCF2CHFCF2CF3 65.3 1 99 10 99 32 77 19CF2HCF2CF2CHFCF3 65.8 1 99 10 99 32 77 19CF3CH2CF2CF2CF3 52.6 1 99 10 99 32 77 19CF3CF2CHFCHFCF3 63.3 1 99 10 99 32 77 20CF3CHFCF2CHFCF3 64.6 1 99 10 99 32 77 20CF3CF2CH2CF2CF3 55 1 99 10 99 32 77 19CF2HCF2CF2CF2CF2H 65.3 1 99 10 99 32 77 20CF3CF2CHFCHFCF2CF3 88 1 99 10 99 32 77 21CF3CF2CF2CH2CF2CF3 78.4 1 99 10 99 32 77 21CF3CHFCF2CF2CHFCF3 91.4 1 99 10 99 32 77 21CF3CF2CHFCF2CHFCF3 90 1 99 10 99 32 77 21CF3CHFCHFCF2CF2CF3 87.6 1 99 10 99 32 77 21CF3CF2CF2CF2CH2CF3 77.7 1 99 10 99 32 77 21CF3CF2CF2CF2CHFCHF2 86.8 1 99 10 99 32 77 21CF3CF2CF2CHFCF2CHF2 89.5 1 99 10 99 32 77 21CF3CF2CHCF2CF2CHF2 91.2 1 99 10 99 32 77 21CF3CHCF2CF2CF2CHF2 90.9 1 99 10 99 32 77 21CF3CF2CF2CF2CF2CH2F 75.9 1 99 10 99 32 77 21CF2HCF2CF2CF2CF2CHF2 90.4 1 99 10 99 32 77 21CF2HCF2CF2CF2CF2CF3 71.4 1 99 10 99 32 77 21CF3CHFCF2CF2CF2CF3 71.9 1 99 10 99 32 77 21CF3CF2CHFCF2CF2CF3 72.2 1 99 10 99 32 77 21CF2HCF2CF2CF3 21.1 1 90 10 80 28 63 15CF3CHFCF2CF3 22.5 1 90 10 80 28 63 15CF2HCF2CF3 -3.14 1 60 10 50 20 40 -6CF3CHFCF3 -2.99 1 60 10 50 20 40 -6__________________________________________________________________________ TABLE 4__________________________________________________________________________ 245fa 245fa More 245fa Most Preferred Preferred preferred245fa azeotropes at 25.degree. C. Compositions Compositions Compositions AzeoNBP = 15.3.degree. C. VP = 1.43 atm wt % wt % wt. % NBP (.degree.C.)STRUCTURE est. BP (.degree.C.) Lower Upper Lower Upper Lower Upper (.+-.1)__________________________________________________________________________CF3CF2CF2CH2CH3 46.3 60 99 70 99 77 92 12CF3CF2CH2CF2CH3 59.4 65 99 75 99 81 93 13CF3CF2CHFCHFCH3 61.7 66 99 76 99 82 93 13CF2CH2CF2CF2CH3 67.2 68 99 78 99 84 94 13CF3CHFCF2CHFCH3 68 69 99 79 99 84 94 13CF3CHFCHFCF2CH3 72.9 70 99 80 99 85 94 14CF3CF2CHFCH2CH2F 70 69 99 79 99 84 94 14CF3CF2CH2CHFCH2F 75.2 71 99 81 99 86 95 14CF3CHFCF2CH2CH2F 76.8 72 99 82 99 86 95 14CF3CHFCH2CF2CH2F 83.1 74 99 84 99 87 95 14CF3CH2CF2CHFCH2F 84.2 74 99 84 99 88 95 14CF3CH2CHFCF2CH2F 85.4 74 99 84 99 88 95 14CF3CHFCHFCHFCH2F 89.1 75 99 85 99 89 96 14CF3CF2CH2CH2CHF2 72.5 70 99 80 99 85 94 14CF3CH2CH2CF2CHF2 80.4 73 99 83 99 87 95 14CF3CH2CF2CH2CHF2 82 73 99 83 99 87 95 14CF3CHFCHFCH2CHF2 86.5 75 99 85 99 88 95 14CF3CHFCH2CHFCHF2 87.7 75 99 85 99 88 95 14CF3CH2CHFCHFCHF2 90.4 76 99 86 99 89 96 14CF3CH2CH2CHFCF3 72.9 70 99 80 99 85 94 14CF3CH2CHFCH2CF3 75.7 71 99 81 99 86 95 14CH2FCF2CF2CF2CH3 65.4 68 99 78 99 83 94 14CH2FCH2CF2CF2CHF2 79.7 73 99 83 99 87 95 14CH2FCF2CF2CH2CHF2 87.1 75 99 85 99 88 95 14CH2FCF2CH2CF2CHF2 87.2 75 99 85 99 88 95 14CH2FCHFCHFCF2CHF2 92.8 76 99 86 99 89 96 14CH2FCHFCF2CHFCHF2 95 77 99 87 99 90 96 14CH2FCF2CHFCHFCHF2 96.6 77 99 87 99 90 96 14CHF2CF2CF2CHFCH3 69.2 69 99 79 99 84 94 14CHF2CF2CHFCF2CH3 74.8 71 99 81 99 85 94 14CHF2CHFCF2CF2CH3 76.3 71 99 81 99 86 95 14CHF2CF2CHFCH2CHF2 91.9 76 99 86 99 89 96 14CHF2CHFCF2CH2CHF2 94.6 77 99 87 99 90 96 14CHF2CF2CH2CHFCHF2 93.6 76 99 86 99 90 96 14CHF2CHFCHFCHFCHF2 103.4 79 99 89 99 91 96 14CH2FCHFCF2CF2CH2F 85.8 74 99 84 99 88 95 14CH2FCF2CHFCF2CH2F 88.1 75 99 85 99 88 95 14CF3CH2CH2CF3 40.7 61 99 71 99 78 92 12CF3CHFCH2CHF2 50.8 66 99 76 99 82 93 12CF3CH2CHFCHF2 53 67 99 77 99 82 93 12CF3CF2CH2CH2F 37.3 60 99 70 99 77 92 11CF3CHFCHFCH2F 50.8 66 99 76 99 82 93 12CF3CH2CF2CH2F 45.8 64 99 74 99 80 93 12CHF2CH2CF2CHF2 55.7 68 99 78 99 83 94 12CHF2CHFCHFCHF2 65.1 71 99 81 99 86 95 13CHF2CF2CHFCH2F 55.3 68 99 78 99 83 94 13CHF2CHFCF2CH2F 57.5 69 99 79 99 84 94 13CH2FCF2CF2CH2F 49.2 65 99 75 99 81 93 12CHF2CF2CF2CH3 35.8 59 99 69 99 77 92 11CF3CF2CHFCH3 26 54 99 64 99 73 90 11CF3CHFCF2CH3 32 57 99 67 99 75 91 11CF3CHFCHFCF2CHFCH2F 120.9 79 99 89 99 91 96 14CF3CH2CF2CF2CHFCH2F 112.7 77 99 87 99 90 96 14CF3CF2CHFCH2CF2CH2F 106.9 76 99 86 99 89 96 14CF3CHFCF2CH2CF2CH2F 111.2 77 99 87 99 90 96 14CF3CF2CH2CHFCF2CH2F 110.3 77 99 87 99 90 96 14CF3CHFCHFCHFCF2CH2F 121.8 79 99 89 99 92 97 14CF3CH2CF2CFHCF2CH2F 114.2 77 99 87 99 90 96 14CF3CHFCH2CF2CF2CH2F 113.4 77 99 87 99 90 96 14CF3CH2CHFCF2CF2CH2F 113.1 77 99 87 99 90 96 14CF3CHFCH2CF2CHFCHF2 120.9 79 99 89 99 91 96 14CF3CH2CHFCF2CHFCHF2 122.2 79 99 89 99 92 97 14CF2CF2CH2CH2CF2CHF2 104.6 75 99 85 99 89 96 14CF3CHFCHFCH2CF2CHF2 117.8 78 99 88 99 91 96 14CF3CH2CF2CH2CF2CHF2 112.4 77 99 87 99 90 96 14CF3CHFCH2CHFCF2CHF2 117.3 78 99 88 99 91 96 14CF3CH2CH2CF2CF2CHF2 107.3 76 99 86 99 89 96 14CF3CH2CHFCHFCF2CHF2 119.2 79 99 89 99 91 96 14CF3CF2CF2CF2CH2CH3 71.4 65 99 75 99 81 93 14CF3CF2CF2CHFCHFCH3 86 70 99 80 99 85 94 14CF3CF2CHFCF2CHFCH3 93.5 72 99 82 99 86 95 14CF3CHFCF2CF2CHFCH3 94.9 73 99 83 99 87 95 14CF3CF2CF2CH2CF2CH3 82.8 69 99 79 99 84 94 14CF3CF2CHFCHFCF2CH3 97.5 73 99 83 99 87 95 14CF3CHFCF2CHFCF2CH3 99.6 74 99 84 99 88 95 14CF3CF2CH2CF2CF2CH3 93 72 99 82 99 86 95 14CF3CHFCHFCF2CF2CH3 102.3 75 99 85 99 88 95 14CF3CH2CF2CF2CF2CH3 92.4 72 99 82 99 86 95 14CHF2CF2CF2CHFCH2CHF2 117.8 78 99 88 99 91 96 14CHF2CF2CHFCF2CH2CHF2 122.4 79 99 89 99 92 97 14CHF2CHFCF2CF2CH2CHF2 123.1 79 99 89 99 92 97 14CF3CF2CHFCH2CHFCHF2 120.4 79 99 89 99 91 96 14CHF2CF2CHFCHFCHFCHF2 132.1 81 99 91 99 93 97 14CHF2CHFCF2CHFCHFCHF2 133.5 81 99 91 99 93 97 14CGF2CF2CH2CF2CHFCHF2 124.9 80 99 90 99 92 97 14CHF2CF2CHFCH2CF2CHF2 123.1 79 99 89 99 92 97 14CHF2CF2CF2CF2CH2CH2F 104.8 75 99 85 99 89 96 14CHF2CF2CF2CHFCHFCH2F 118.7 78 99 88 99 91 96 14CHF2CF2CHFCF2CHFCH2F 122.9 79 99 89 99 92 97 14CHF2CHFCF2CF2CHFCH2F 121.8 79 99 89 99 92 97 14CHF2CF2CF2CH2CF2CH2F 114.1 77 99 87 99 90 96 14CHF2CF2CHFCHFCF2CH2F 125.4 80 99 90 99 92 97 14CHF2CHFCF2CHFCF2CH2F 125 80 99 90 99 92 97 14CHF2CF2CH2CF2CF2CH2F 117.5 78 99 88 99 91 96 14CHF2CHFCHFCF2CF2CH2F 124.2 80 99 90 99 92 97 14CHF2CH2CF2CF2CF2CH2F 112.2 77 99 87 99 90 96 14CF2HCH2CF2CF2CHFCH3 94.4 72 99 82 99 87 95 14CF2HCF2CF2CHFCF2CH3 100.8 74 99 84 99 88 95 14CHF2CF2CHFCF2CF2CH3 104.2 75 99 85 99 89 96 14CHE2CHCF2CF2CF2CH3 101.4 74 99 84 99 88 95 14CH2FCF2CF2CF2CF2CH3 90.6 71 99 81 99 86 95 14CH2FCF2CF2CF2CHFCH2F 110.9 77 99 87 99 90 96 14CH2FCF2CF2CHFCF2CH2F 115.9 78 99 88 99 91 96 14CF3CH2CH2CHFCF2CF3 96.7 73 99 83 99 87 95 14CF3CH2CH2CF2CHFCF3 104.4 75 99 85 99 89 96 14CF3CF2CH2CHFCH2CF3 100.7 74 99 84 99 88 95 14CF3CHFCHFCHFCH2CF3 115.5 78 99 88 99 91 96 14CF3CH2CF2CHFCH2CF3 111.4 77 99 87 99 90 96 14CF3CHFCH2CF2CH2CF3 108.4 76 99 86 99 89 96 14CF3CHFCH2CH2CF2CF3 97.1 73 99 83 99 87 95 14CF3CHFCHFCH2CHFCF3 112 77 99 87 99 90 96 14CF3CF2CF2CH2CH2CHF2 95.9 73 99 83 99 87 95 14CF3CF2CHFCHFCH2CHF2 111.2 77 99 87 99 90 96 14CF3CHFCF2CHFCH2CHF2 116.6 78 99 88 99 91 96 14CF3CF2CH2CF2CH2CHF2 107.9 76 99 86 99 89 96 14CF3CHFCHFCF2CH2CHF2 120.5 79 99 89 99 91 96 14CF3CH2CF2CF2CH2CHF2 114 77 99 87 99 90 96 14CF3CF2CHFCH2CHFCHF2 111.5 77 99 87 99 90 96 14CF3CHFCF2CH2CHFCHF2 117.4 78 99 88 99 91 96 14CF3CF2CH2CHFCHFCHF2 115.4 78 99 88 99 91 96 14CF3CHFCHFCHFCHFCHF2 128.5 80 99 90 99 93 97 14CF3CH2CF2CHFCHFCHF2 122.7 79 99 89 99 92 97 14CF3CF2CF2CHFCH2CH2F 94.3 72 99 82 99 87 95 14CF3CF2CHFCF2CH2CH2F 102.3 75 99 85 99 88 95 14CF3CHFCF2CF2CH2CH2F 105.3 75 99 85 99 89 96 14CF3CF2CF2CH2CHFCH2F 98.6 74 99 84 99 87 95 14CF3CF2CHFCHFCHFCH2F 113.8 77 99 87 99 90 96 14CF3CHFCF2CHFCHFCH2F 117.5 78 99 88 99 91 96 14CF3CF2CH2CF2CHFCH2F 110 76 99 86 99 90 96 14CH3CHFCF2CF2CF3 50.2 60 99 70 99 77 92 12CH3CF2CFHCF2CF3 57.5 63 99 73 99 79 92 12CH3CF2CF2CHFCF3 60.9 64 99 74 99 80 93 13CH2FCH2CF2CF2CF3 60.7 64 99 74 99 80 93 13CH2FCHFCHFCF2CF3 75.5 69 99 79 99 84 94 14CH2FCHFCF2CHFCF3 80.1 71 99 81 99 85 94 14CH2FCF2CH2CF2CF3 71.6 68 99 78 99 83 94 14CH2FCF2CHFCHFCF3 83.5 72 99 82 99 86 95 14CH2FCF2CF2CH2CF3 76.1 70 99 80 99 84 94 14CF2HCH2CHFCF2CF3 74.6 69 99 79 99 84 94 14CF2HCH2CF2CHFCF3 79.7 71 99 81 99 85 94 14CF2HCHFCH2CF2CF3 77.9 70 99 80 99 85 94 14CF2HCHFCHFCHFCF3 90.2 74 99 84 99 88 95 14CF2HCHFCF2CH2CF3 83.5 72 99 82 99 86 95 14CF2HCF2CH2CFHCF3 82 71 99 81 99 86 95 14CF2HCF2CHFCH2CF3 82.6 72 99 82 99 86 95 14CF3CH2CH2CF2CF3 64.8 66 99 76 99 81 93 14CF3CH2CHFCHFCF3 77.2 70 99 80 99 85 94 14CF3CH2CF2CH2CF3 71 68 99 78 99 83 94 14CF3CHFCH2CHFCF3 76.2 70 99 80 99 84 94 14CH2FCF2CHFCF2CF2H 85.4 73 99 83 99 87 95 14CH2FCF2CF2CHFCF2H 85.2 72 99 82 99 87 95 14CH2FCHFCF2CF2CF2H 81.3 71 99 81 99 86 95 14CH3CF2CF2CF2CF2H 60.9 64 99 74 99 80 93 14CF2HCH2CF2CF2CF2H 82.6 72 99 82 99 86 95 14CF2HCHFCHFCF2CF2H 93.8 75 99 85 99 88 95 14CF2HCHFCF2CHFCF2H 94.3 75 99 85 99 89 96 14CF2HCF2CH2CF2CF2H 86.1 73 99 83 99 87 95 14CH2FCF2CF2CF2CH2F 74.3 69 99 79 99 84 94 14CF3CF2CF2CH2CH2CF3 88.3 69 99 79 99 84 94 14CF3CF2CHFCHFCH2CF3 101.9 73 99 83 99 87 95 14CF3CHFCF2CHFCH2CF3 107.3 75 99 85 99 88 95 14CF3CF2CH2CF2CH2CF3 96.9 72 99 82 99 86 95 14CF3CHFCHFCF2CH2CF3 109.5 75 99 85 99 89 96 14CF3CH2CF2CF2CH2CF3 103 73 99 83 99 87 95 14CF3CHFCH2CHFCF2CF3 100 73 99 83 99 87 95 14CF3CHFCH2CF2CHFCF3 10.6 34 99 44 99 58 85 14CF3CHFCHFCH2CF2CF3 102.2 73 99 83 99 87 95 14CF3CHFCHFCHFCHFCF3 115.3 76 99 86 99 90 96 14CF3CF2CH2CH2CF2CF3 89 69 99 79 99 84 94 14CF3CF2CF2CHFCH2CHF2 98.8 72 99 82 99 86 95 14CF3CF2CHFCF2CH2CHF2 105.1 74 99 84 99 88 95 14CF3CHFCF2CF2CHFCHF2 108.2 75 99 85 99 88 95 14CF3CF2CF2CH2CHFCHF2 101.4 73 99 83 99 87 95 14CF3CF2CHFCHFCHFCHF2 114.8 76 99 86 99 89 96 14CF3CHFCF2CHFCHFCHF2 118.6 77 99 87 99 90 96 14CF3CF2CH2CF2CHFCHF2 109.4 75 99 85 99 89 96 14CF3CHFCHFCF2CHFCHF2 120.3 78 99 88 99 90 96 14CF3CH2CF2CF2CHFCHF2 112.1 76 99 86 99 89 96 14CF3CF2CHFCH2CF2CHF2 105.8 74 99 84 99 88 95 14CF3CHFCF2CH2CF2CHF2 110.1 75 99 85 99 89 96 14CF3CF2CH2CHFCF2CHF2 107.5 75 99 85 99 88 95 14CF3CHFCHFCHFCF2CHF2 118.9 77 99 87 99 90 96 14CF3CH2CF2CHFCF2CHF2 111.4 76 99 86 99 89 96 14CF3CHFCH2CF2CF2CHF2 108.9 75 99 85 99 88 95 14CF3CH2CHFCF2CF2CHF2 108.5 75 99 85 99 88 95 14CF3CF2CF2CF2CH2CH2F 85.8 68 99 78 99 83 94 14CF3CF2CF2CHFCHFCH2F 99.7 73 99 83 99 87 95 14CF3CF2CHFCF2CHFCH2F 105.6 74 99 84 99 88 95 14CF3CHFCF2CF2CHFCH2F 106.9 74 99 84 99 88 95 14CF3CF2CF2CH2CF2CH2F 95.1 71 99 81 99 86 95 14CF3CF2CHFCHFCF2CH2F 108.1 75 99 85 99 88 95 14CF3CHFCF2CHFCF2CH2F 110.1 75 99 85 99 89 96 14CF3CF2CH2CF2CF2CH2F 101.9 73 99 83 99 87 95 14CF3CHFCHFCF2CF2CH2F 111.4 76 99 86 99 89 96 14CHF2CF2CHFCF2CF2CH2F 101.2 73 99 83 99 87 95 14CF3CF2CF2CF2CHFCH3 75.4 65 99 75 99 81 93 14CF3CF2CF2CHFCF2CH3 81.8 67 99 77 99 83 94 14CF3CF2CHFCF2CF2CH3 86.9 69 99 79 99 84 94 14CF3CHFCF2CF2CF2CH3 86.6 69 99 79 99 84 94 14CHF2CF2CF2CHFCHFCHF2 119.8 77 99 87 99 90 96 14CHF2CF2CHFCF2CHFCHF2 122.2 78 99 88 99 91 96 14CHF2CHFCF2CF2CHFCHF2 121.2 78 99 88 99 91 96 14CHF2CF2CF2CH2CF2CHF2 113 76 99 86 99 89 96 14CHF2CF2CHFCHFCF2CHF2 122.6 78 99 88 99 91 96 14CHF2CH2CF2CF2CF2CHF2 107.7 75 99 85 99 88 95 14CHF2CF2CF2CF2CHFCH2F 106.4 74 99 84 99 88 95 14CHF2CF2CF2CHFCF2CH2F 111.4 76 99 86 99 89 96 14CHF2CF2CHFCF2CF2CH2F 113.1 76 99 86 99 89 96 14CHF2CHFCF2CF2CF2CH2F 110.3 75 99 85 99 89 96 14CH2FCF2CF2CF2CF2CH2F 99.4 72 99 82 99 87 95 14CHFCF2CF2CF2CF2CH3 86.1 68 99 78 99 84 94 14CH3CF2CF2CF3 16.8 46 99 56 99 67 88 9CH2FCHFCF2CF3 38 58 99 68 99 76 91 11CH2FCF2CHFCF3 42.6 60 99 70 99 77 92 11CH2FCF2CH2CF3 44.7 61 99 71 99 78 92 11CF2HCH2CF2CF3 40.2 59 99 69 99 76 91 11CF2HCHFCHFCF3 51.9 64 99 74 99 80 93 11CF3CH2CHFCF3 41.5 59 99 69 99 77 92 11CH2FCF2CF2CF2H 44.7 61 99 71 99 78 92 11CF2HCHFCF2CF2H 54.7 65 99 75 99 81 93 12CF3CF2CHFCH2CF3 65.3 64 99 74 99 80 93 13CF3CH2CF2CHFCF3 68.6 65 99 75 99 81 93 13CF3CHFCH2CF2CF3 66.5 64 99 74 99 81 93 13CF3CHFCHFCHFCF3 77 68 99 78 99 83 94 13CF3CH2CF2CF2CHF2 71.6 66 99 76 99 82 93 13CF3CF4FCHFCF2CHF2 80.6 69 99 79 99 84 94 13CF3CF2CH2CF2CHF2 70.5 66 99 76 99 82 93 13CF3CHFCF2CHFCHF2 79.5 69 99 79 99 84 94 13CF3CF2CHFCHFCHF2 76.5 68 99 78 99 83 94 13CF3CF2CF2CH2CHF2 63.6 63 99 73 99 80 93 13CF3CF2CF2CHFCH2F 62.3 63 99 73 99 79 92 13CF3CF2CHFCF2CH2F 68.1 65 99 75 99 81 93 13CF3CHFCF2CF2CH2F 70.3 66 99 76 99 82 93 13CF3CF2CF2CF2CH3 41.9 54 99 64 99 73 90 13CHF2CF2CF2CHFCHF2 80.7 69 99 79 99 84 94 13CHF2CF2CHFCF2CHF2 82.6 70 99 80 99 85 94 13CHF2CF2CF2CF2CH2F 69.8 66 99 76 99 81 93 13CH3(CF2)4CF3 67.1 60 99 70 99 77 92 14CH2FCHF(CF2)3CF3 87.4 67 99 77 99 83 94 14CH2FCF2CHFCF2CF2CF3 92.3 69 99 79 99 84 94 14CH2FCF2CF2CHFCF2CF3 95.8 70 99 80 99 85 94 14CH2F(CF2)3CHFCF3 95.4 70 99 80 99 85 94 14CF2HCH2(CF2)3CF3 88.7 68 99 78 99 83 94 14CF2HCHFCHFCF2CF2CF3 100.8 71 99 81 99 86 95 14CF2HCHFCF2CHFCF2CF3 104.9 73 99 83 99 87 95 14CF2HCHFCF2CF2CHFCF3 106.3 73 99 83 99 87 95 14CF2HCF2CH2CF2CF2CF3 94 69 99 79 99 84 94 14CF2HCF2CHFCHFCF2CF3 105.3 73 99 83 99 87 95 14CF2HCF2CHFCF2CHFCF3 107.3 73 99 83 99 87 95 14CF2HCF2CF2CH2CF2CF3 97.4 71 99 81 99 85 94 14CF2HCF2CF2CHFCHFCF3 106.6 73 99 83 99 87 95 14CF2H(CF2)3CH2CF3 96.7 70 99 80 99 85 94 14CF3CH2CHFCF2CF2CF3 89.5 68 99 78 99 83 94 14CF3CH2CF2CHFCF2CF3 94.1 70 99 80 99 84 94 14CF3CHFCF2CF2CH2CF3 97.2 70 99 80 99 85 94 14CF3CF2CF2CH2CHFCF3 89.9 68 99 78 99 83 94 14CF3CHFCHFCHFCF2CF3 101.6 72 99 82 99 86 95 14CF3CHFCF2CHFCHFCF3 105.4 73 99 83 99 87 95 14CF3CHFCF2CH2CF2CF3 94.5 70 99 80 99 84 94 14CF3CF2CH2CHFCF2CF3 90.2 68 99 78 99 83 94 14CH2F(CF2)4CF2H 94.9 70 99 80 99 85 94 14CF2HCHF(CF2)3CF2H 105.8 73 99 83 99 87 95 14CF2HCF2CHFCF2CF2CF2H 108.5 74 99 84 99 87 95 14CF3CHFCHFCF3 38.7 56 99 66 99 74 91 11CF3CF2CF2CH2F 25.7 49 99 59 99 69 89 10CF3CF2CHFCHF2 37.4 55 99 65 99 74 91 11CF3CHFCF2CHF2 39.8 56 99 66 99 74 91 11CF3CF2CH2CHF2 29.1 51 99 61 99 70 89 11CHF2CF2CF2CHF2 40.1 56 99 66 99 75 91 11CH2FCF2CF2CH2CF3 50.8 56 99 66 99 74 91 13CF2HCHFCF2CF2CF3 61.7 61 99 71 99 78 92 14CF2HCF2CHFCF2CF3 65.3 62 99 72 99 79 92 14CF2HCF2CF2CHFCF3 65.8 62 99 72 99 79 92 14CF3CH2CF2CF2CF3 52.6 57 99 67 99 75 91 14CF3CF2CHFCHFCF3 63.3 61 99 71 99 78 92 14CF3CHFCF2CHFCF3 64.6 62 99 72 99 79 92 14CF3CF2CH2CF2CF3 55 58 99 68 99 76 91 14CF2HCF2CF2CF2CF2H 65.3 62 99 72 99 79 92 14CF3CF2CHFCHFCF2CF3 88 66 99 76 99 82 93 14CF3CF2CF2CHCF2CF3 78.4 63 99 73 99 79 92 14CF3CHFCF2CF2CHFCF3 91.4 67 99 77 99 83 94 14CF3CF2CHFCF2CHFCF3 90 67 99 77 99 82 93 14CF3CHFCHFCF2CF2CF3 87.6 66 99 76 99 82 93 14CF3CF2CF2CF2CH2CF3 77.7 63 99 73 99 79 92 14CF3CF2CF2CF2CHFCHF2 86.8 66 99 76 99 82 93 14CF3CF2CF2CHFCF2CHF2 89.5 67 99 77 99 82 93 14CF3CF2CHFCF2CF2CHF2 91.2 67 99 77 99 83 94 14CF3CHFCF2CF2CF2CHF2 90.9 67 99 77 99 83 94 14CF3CF2CF2CF2CF2CH2F 75.9 62 99 72 99 79 92 14CF2HCF2CF2CF2CF2CHF2 90.4 67 99 77 99 83 94 14CF2HCF2CF2CF2CF2CF3 71.4 59 99 69 99 76 91 14CF3CHFCF2CF2CF2CF3 71.9 59 99 69 99 77 92 14CF3CF2CHFCF2CF2CF3 72.2 59 99 69 99 77 92 14CF2HCF2CF2CF3 21.1 44 99 54 95 65 85 10CF3CHFCF2CF3 22.5 45 99 55 95 65 85 10CF2HCF2CF3 -3.14 36 90 46 85 56 75 -7CF3CHFCF3 -2.99 37 90 47 85 56 75 -7__________________________________________________________________________

EXAMPLE 1

This examples shows that constant boiling HFC-245 and hydrofluorocarbon blends have certain advantages when compared to other refrigerants currently used in certain refrigeration cycles. The theoretical performance of a refrigerant at specific operating conditions may be estimated from the thermodynamic performance of a refrigerant using standard refrigeration cycle analysis techniques. See R. C. Downing, Fluorocarbon Refrigerants Handbook, Chapter 3, Prentice-Hall, 1988. The coefficient of performance, COP, is a universally accepted measure especially useful in representing the relative thermodynamic efficiency of a refrigerant in a specific heating or cooling cycle involving evaporation or condensation of the refrigerant. In refrigeration engineering, this term expresses the ratio of useful refrigeration to the energy applied by the compressor in compressing vapor. The capacity of a refrigerant represents the volume efficiency of the refrigerant. To a compressor engineer, this value expresses the capability of a compressor to pump quantities of heat for a given volumetric flow rate of refrigerant. In other words, given a specific compressor, a refrigerant with a higher capacity will deliver more cooling or heating power.

This type of calculation is performed for Blend 1, HFC-245ca and CF.sub.3 CH.sub.2 CHFCF.sub.3, and Blend 2, HFC-245fa and CF.sub.2 HCHFCHFCF.sub.3. Table 5 lists the COP and capacity of the various blends at typical chiller conditions in a saturated cycle and at 40.degree. F. evaporator temperature and 100.degree. F. condensing temperature and a compressor efficiency of 80% and a displacement of 1000 cubic feet per hour.

TABLE 5______________________________________ COP Capacity (BTU/hr)______________________________________Blend 1 5.57 11,577Blend 2 5.90 11,463______________________________________ As can be seen, the HFC-245 compositions of this invention are useful refrigerants.

In addition to being minimally segregating, the compositions of this invention overcome the potential drawbacks of the single component refrigerants in that the present blends likely will not exhibit flame limits when tested in air at ambient conditions using the ASTM E-681 method as specified in the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) Standard 34-1992.

While only a few embodiments of the invention have been shown and described herein, it will become apparent to those skilled in the art that various modifications and changes can be made in the present invention to azeotropic-like mixtures of fluorinated organic compounds and their use in heating and cooling and as blowing agents in polymers. All such modifications and changes coming within the scope of the appended claims are intended to be carried out thereby.

Claims

1. A mixture having the properties of an azeotrope for use as a heat transfer agent for cooling, heating and combinations thereof, which mixture comprises:

(a) pentafluoropropane; and

(b) a hydrofluorocarbon of the formula:

C.sub.x F.sub.y H.sub.z,

wherein x is 3, 4, 5, or 6 and y and z are each independently 1 or a positive whole number such that the result of y/(y+z) is greater than 0.67.

2. The mixture of claim 1 wherein the pentafluoropropane is 1,1,2,2,3-pentafluoropropane and the hydrofluorocarbon is independently selected from the group of consisting of

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCHFCHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CHFCH.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CH.sub.2 FCHFCHFCF.sub.2 CHF.sub.2 ;

CH.sub.2 FCHFCF.sub.2 CHFCHF.sub.2 ;

CH.sub.2 FCF.sub.2 CHFCHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 ;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 ;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CHFCHFCHFCHF.sub.2 ;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CHFCHFCH.sub.2 F;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CHF.sub.2 CHFCHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCHFCHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CF.sub.2 CFHCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 ;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCHFCHFCHF.sub.2 ;

CHF.sub.2 CHFCF.sub.2 CHFCHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F;

CHF.sub.2 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CHFCHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCH.sub.2 CHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CHFCHFCHFCHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCHFCHFCH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CHFCHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCH.sub.2 F;

CH.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.3 CF.sub.2 CFHCF.sub.2 CF.sub.3 ;

CH.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCHFCHFCF.sub.2 CF.sub.3 ;

CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CHFCHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.2 HCH.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCH.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.2 HCHFCH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCHFCHFCF.sub.3 ;

CF.sub.2 HCHFCF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CH.sub.2 CFHCF.sub.3 ;

CF.sub.2 HCF.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 H;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 H;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CF.sub.2 H;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 H;

CF.sub.2 HCHFCF.sub.2 HFCF.sub.2 H;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 H;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCHFCHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCHFCHFCHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CHFCHFCF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CHF.sub.2 ;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCHFCF.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 H;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CH.sub.3 (CF.sub.2).sub.4 CF.sub.3 ;

CH.sub.2 FCHF(CF.sub.2).sub.3 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 ;

CH.sub.2 F(CF.sub.2).sub.3 CHFCF.sub.3 ;

CF.sub.2 HCF.sub.2 (CF.sub.2).sub.3 CF.sub.3 ;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCF.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CHFCHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CHFCF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCHFCF.sub.3 ;

CF.sub.2 H(CF.sub.2).sub.3 CH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCF.sub.3 ;

CF.sub.3 CHFCHFCHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCHFCF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 ;

CH.sub.2 F(CF.sub.2).sub.4 CF.sub.2 H;

CF.sub.2 HCHF(CF.sub.2).sub.3 CF.sub.2 H;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.3 CHFCHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.3 and;

CF.sub.3 CHFCF.sub.3.

3. The mixture of claim 2 wherein each hydrofluorocarbon present in the mixture is independently selected from the group consisting of

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 51 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 57 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.3 present in between about 58 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 60 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.3 present in between about 60 and 99 wt %;

CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 present in between about 62 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 61 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 63 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 64 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 66 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 66 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 67 and 99 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 F present in between about 68 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 62 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 65 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 65 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHF.sub.2 present in between about 67 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCHF.sub.2 present in between about 67 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCHF.sub.2 present in between about 68 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.3 present in between about 62 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 63 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 59 and 99 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 65 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 67 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 67 and 99 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CHF.sub.2 present in between about 69 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCHF.sub.2 present in between about 70 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCHF.sub.2 present in between about 70 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 61 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 63 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 63 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 69 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 70 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 69 and 99 wt %;

CHF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 72 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 67 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 67 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 52 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHF.sub.2 present in between about 57 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHF.sub.2 present in between about 58 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 51 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 F present in between about 57 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 55 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 59 and 99 wt %;

CHF.sub.2 CHFCHFCHF.sub.2 present in between about 63 and 99 wt %;

CHF.sub.2 CF.sub.2CHFCH.sub.2 F present in between about 59 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 60 and 99 wt %;

CH.sub.2 FCF.sub.3 CF.sub.2 CH.sub.2 F present in between about 57 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 50 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.3 present in between about 45 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.3 present in between about 48 and 95 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCH.sub.2 F present in between about 72 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 70 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 68 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 70 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 69 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CH.sub.2 F present in between about 72 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CFHCF.sub.2 CH.sub.2 F present in between about 70 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 70 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 70 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 72 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 72 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 68 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 71 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 70 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 71 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 68 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHF.sub.2 CHF.sub.2 present in between about 72 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 56 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.3 present in between about 62 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.3 present in between about 64 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 65 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 60 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 present in between about 65 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 66 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 64 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 67 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 64 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 71 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 72 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 73 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 72 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 75 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 75 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 73 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 73 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 68 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 72 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 73 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 72 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 70 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 73 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 73 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 71 and 99 wt %;

CHF.sub.2 CHFCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 73 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 70 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 64 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 67 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 68 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 67 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 63 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 69 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 71 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 65 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 68 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 66 and 99 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 CF.sub.3 present in between about 71 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 70 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 69 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 65 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHFCF.sub.3 present in beetween about 70 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 65 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CHF.sub.2 present in between about 70 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 71 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 69 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 72 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 70 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 70 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 71 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCHFCHF.sub.2 present in between about 71 and 99 wt %;

CF.sub.3 CHFCHFCHFCHFCHF.sub.2 present in between about 74 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 73 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 64 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 C.sub.2 F present in between about 67 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 68 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 66 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCH.sub.2 F present in between about 70 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCH.sub.2 F present in between about 71 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 69 and 99 wt %;

CH.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 50 and 99 wt %;

CH.sub.3 CF.sub.2 CFHCF.sub.2 CF.sub.3 present in between about 54 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 55 and 99 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 55 and 99 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CF.sub.3 present in between about 61 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 present in between about 63 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 60 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCF.sub.3 present in between about 64 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 61 and 99 wt %;

CF.sub.2 HCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 61 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 63 and 99 wt %;

CF.sub.2 HCHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 62 and 99 wt %;

CF.sub.2 HCHFCHFCHFCF.sub.3 present in between about 66 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 64 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CFHCF.sub.3 present in between about 63 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 64 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 57 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.3 present in between about 62 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 present in between about 59 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.3 present in between about 61 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 H present in between about 65 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 H present in between about 65 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 63 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 55 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 64 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 H present in between about 67 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 HFCF.sub.2 H present in between about 68 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 H present in between about 65 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 61 and 99 wt %;

CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 61 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CF.sub.3 present in between about 65 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 67 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 64 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 68 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 66 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 65 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 26 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 65 and 99 wt %;

CF.sub.3 CHFCHFCHFCHFCF.sub.3 present in between about 69 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 61 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 64 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 66 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 67 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 65 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 69 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 70 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 68 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCHF.sub.2 present in between about 71 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 68 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 66 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 68 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 67 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CHF.sub.2 present in between about 70 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 68 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 67 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 67 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 60 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 65 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 66 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 67 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 F present in between about 63 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 67 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 68 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 65 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 68 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 65 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 56 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 58 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 60 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 60 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 70 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 71 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 71 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 69 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 71 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 67 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 67 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 68 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 69 and 99 wt %;

CHF.sub.2 CHFCFF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 68 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 65 and 99 wt %;

CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 60 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 38 and 80 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.3 present in between about 49 and 95 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.3 present in between about 51 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.3 present in between about 57 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.3 present in between about 50 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.3 present in between about 55 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.3 present in between about 50 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 52 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 H present in between about 56 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 55 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 56 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 56 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.3 present in between about 60 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 58 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHF.sub.2 present in between about 61 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 57 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHF.sub.2 present in between about 61 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHF.sub.2 present in between about 60 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 54 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 54 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 56 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 57 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 45 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 61 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 62 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 57 and 99 wt %;

CH.sub.3 (CF.sub.2).sub.4 CF.sub.3 present in between about 51 and 99 wt %;

CH.sub.2 FCHF(CF.sub.2).sub.3 CF.sub.3 present in between about 59 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 F.sub.3 present in between about 61 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between abaout 62 and 99 wt %;

CH.sub.2 F(CF.sub.2).sub.3 CHFCF.sub.3 present in between about 62 and 99 wt %;

CF.sub.2 HCF.sub.2 (CF.sub.2).sub.3 CF.sub.3 present in between about 59 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 63 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 65 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 65 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 61 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 65 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 65 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 62 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCHFCF.sub.3 present in between about 65 and 99 wt %;

CF.sub.2 H(CF.sub.2).sub.3 CH.sub.2 CF.sub.3 present in between about 62 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 60 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 61 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 62 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCF.sub.2 present in between about 60 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CF.sub.3 present in between about 64 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCF.sub.3 present in between about 65 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 61 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHCFF.sub.2 CF.sub.3 present in between about 60 and 99 wt %;

CH.sub.2 F(CF.sub.2).sub.4 CF.sub.2 H present in between about 62 and 99 wt %;

CF.sub.2 HCHF(CF.sub.2).sub.3 CF.sub.2 H present in between about 65 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 66 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.3 present in between about 47 and 95 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 40 and 90 wt %;

CF.sub.3 CF.sub.2 CHFCHF.sub.2 present in between about 46 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CHF.sub.2 present in between about 47 and 95 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 42 and 90 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 47 and 95 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 47 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 52 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 53 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 53 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 48 and 99 %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.3 present in between about 52 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.3 present in between about 53 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 49 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 53 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 58 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 54 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 59 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 58 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 57 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 54 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 57 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 58 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 59 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 59 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 53 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 58 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 50 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 50 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 50 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.3 present in between about 36 and 90 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.3 present in between about 36 and 90 wt %;

CF.sub.2 HCF.sub.2 CF.sub.3 present in between about 28 and 60 wt %; and

CF.sub.3 CHFCF.sub.3 present in between about 29 and 60 wt %.

4. The mixture of claim 2 wherein each hydrofluorocarbon present in the mixture is independently selected from the group consisting of

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 61 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 67 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.3 present in between about 68 and 99 wt %;

CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 70 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.3 present in between about 70 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.3 present in between about 72 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 71 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 73 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 74 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 76 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 76 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 77 and 99 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 F present in between about 78 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 72 and 99 wt %;

CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 75 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 75 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHF.sub.2 present in between about 77 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCHF.sub.2 present in between about 77 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCHF.sub.2 present in between about 78 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.3 present in between about 72 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 73 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 69 and 99 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 75 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 77 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 77 and 99 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CHF.sub.2 present in between about 79 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCHF.sub.2 present in between about 80 and 99 wt %;

CH.sub.2 FCF.sub.3 CHFCHFCHF.sub.2 present in between about 80 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 71 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 73 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 73 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 79 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 80 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 79 and 99 wt %;

CHF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 82 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 77 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 77 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 62 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHF.sub.2 present in between about 67 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHF.sub.2 present in between about 68 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 61 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 F present in between about 67 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 65 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 69 and 99 wt %;

CHF.sub.2 CHFCHFCHF.sub.2 present in between about 73 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 69 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 70 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 67 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 60 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.3 present in between about 55 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.3 present in between about 58 and 95 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCH.sub.2 F present in between about 82 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 80 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 78 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 80 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 79 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CH.sub.2 F present in between about 82 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CFHCF.sub.2 CH.sub.2 F present in between about 80 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 80 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 80 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 82 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 82 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 78 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 81 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 80 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 81 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 78 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 82 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 66 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.3 present in between about 72 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.3 present in between about 74 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 70 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 present in between about 75 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 76 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 74 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 77 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 74 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 81 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 82 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 83 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 82 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 85 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 85 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 85 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 83 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 78 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 82 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 83 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 82 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 80 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 83 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 83 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 81 and 99 wt %;

CHF.sub.2 CHFChFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 83 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 80 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 74 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 77 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 78 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 77 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 73 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 79 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 81 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 75 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 78 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 76 and 99 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 CF.sub.3 present in between about 81 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCh.sub.2 CF.sub.3 present in between about 80 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.3 present in between about 79 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 75 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHFCF.sub.3 present in between about 80 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CHF.sub.2 present in between about 80 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 81 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 79 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 82 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 80 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 80 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 81 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCHFCHF.sub.2 present in between about 81 and 99 wt %;

CF.sub.3 CHFCHFCHFCHfCHF.sub.2 present in between about 84 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 83 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 74 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 77 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 78 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 76 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCH.sub.2 F present in between about 80 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCH.sub.2 F present in between about 81 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 79 and 99 wt %;

CH.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 60 and 99 wt %;

CH.sub.3 CF.sub.2 CFHCF.sub.2 CF.sub.3 present in between about 64 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 65 and 99 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 65 and 99 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CF.sub.3 present in between about 71 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 present in between about 73 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 70 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCF.sub.3 present in between about 74 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 71 and 99 wt %;

CF.sub.2 HCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 71 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 73 and 99 wt %;

CF.sub.2 HCHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 72 and 99 wt %;

CF.sub.2 HCHFCHFCHFCF.sub.3 present in between about 76 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 74 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CFHCF.sub.3 present in between about 73 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 74 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 67 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.3 present in between about 72 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 69 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.3 present in between about 71 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 H present in between about 75 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 H present in between about 75 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 73 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 65 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 74 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 H present in between about 77 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 HFCF.sub.2 H present in between about 78 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 H present in between about 75 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 71 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 71 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CF.sub.3 present in between about 75 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 77 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 74 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 78 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 76 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 75 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 36 and 99 wt %;

CF.sub.3 CHFCHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 75 and 99 wt %;

CF.sub.3 CHFCHFCHFCHFCF.sub.3 present in between about 79 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 71 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 74 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 76 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 77 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 79 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 80 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 78 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCHF.sub.2 present in between about 81 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 78 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 76 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 78 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 77 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CHF.sub.2 present in between about 80 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 78 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 77 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 77 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 70 and 99 ; wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 76 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 77 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 73 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 77 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 78 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 75 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 78 and 99 wt %;

HF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 66 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 68 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 70 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 70 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 80 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 81 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 81 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 79 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 81 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 77 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 77 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 78 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 79 and 99 wt %;

CHF.sub.2 CHFCFF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 78 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 75 and 99 wt %;

CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 70 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 48 and 80 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.3 present in between about 59 and 95 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.3 present in between about 61 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.3 present in between about 62 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.3 present in between about 60 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.3 present in between about 65 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.3 present in between about 60 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 62 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 H present in between about 66 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 65 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 66 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 66 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.3 present in between about 70 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 68 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHF.sub.2 present in between about 71 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 67 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHF.sub.2 present in between about 71 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHF.sub.2 present in between about 70 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 64 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 64 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 66 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 67 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 55 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 71 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 72 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 67 and 99 wt %;

CH.sub.3 (CF.sub.2).sub.4 CF.sub.3 present in between about 61 and 99 wt %;

CH.sub.2 FCHF(CF.sub.2).sub.3 CF.sub.3 present in between about 69 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 F.sub.3 present in between about 71 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 72 and 99 wt %;

CH.sub.2 F(CF.sub.2).sub.3 CHFCF.sub.3 present in between about 72 and 99 wt %;

CF.sub.2 HCF.sub.2 (CF.sub.2).sub.3 CF.sub.3 present in between about 69 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 73 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 75 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 75 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 71 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 75 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 75 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 72 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCHFCF.sub.3 present in between about 75 and 99 wt %;

CF.sub.2 H(CF.sub.2).sub.3 CH.sub.2 CF.sub.3 present in between about 72 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 70 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 71 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 72 and 98 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCF.sub.3 present in between about 70 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CF.sub.3 present in between about 74 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCF.sub.3 present in between about 75 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 71 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHCFF.sub.2 CF.sub.3 present in between about 70 and 99 wt %;

CH.sub.2 F(CF.sub.2).sub.4 CF.sub.2 H present in between about 72 and 99 wt %;

CF.sub.2 HCHF(CF.sub.2).sub.3 CF.sub.2 H present in between about 75 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 76 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.3 present in between about 57 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 50 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHF.sub.2 present in between about 56 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHF.sub.2 present in between about 57 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 52 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 57 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 57 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 62 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 63 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 63 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 58 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.3 present in between about 62 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.3 present in between about 63 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 59 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 63 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 68 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 64 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 69 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 68 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 67 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 64 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 67 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 68 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 69 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 69 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 63 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 68 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 60 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 60 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 60 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.3 present in between about 46 and 80 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.3 present in between about 46 and 80 wt %;

CF.sub.2 HCF.sub.2 CF.sub.3 present in between about 38 and 50 wt %;

CF.sub.3 CHFCF.sub.3 present in between about 39 and 50 wt %.

5. The mixture of claim 2 wherein each hydrofluorocarbon present in the mixture is independently selected from the group consisting of

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 70 and 89 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 75 and 91 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.3 present in between about 76 and 91 wt %;

CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 77 and 92 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.3 present in between about 77 and 92 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.3 present in between about 79 and 92 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 78 and 92 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 80 and 93 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 80 and 93 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 82 and 93 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 82 and 93 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 F present in between about 83 and 94 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 79 and 92 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 81 and 93 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 81 and 93 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHF.sub.2 present in between about 82 and 93 wt %;

CF.sub.3 CHFCH.sub.2 CHFCHF.sub.2 present in between about 83 and 94 wt %;

CF.sub.3 CH.sub.2 CHFCHFCHF.sub.2 present in between about 83 and 94 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 79 and 92 wt %;

CF.sub.3 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 80 and 93 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 77 and 92 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 81 and 93 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 83 and 94 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 83 and 94 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CHF.sub.2 present in between about 84 and 94 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCHF.sub.2 present in between about 84 and 94 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCHF.sub.2 present in between about 85 and 94 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 78 and 92 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 79 and 92 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 80 and 93 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 84 and 94 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 84 and 94 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 84 and 94 wt %;

CHF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 86 and 95 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 82 and 93 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 83 and 94 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 72 and 90 wt %;

CF.sub.3 CHFCHF.sub.2 CHF.sub.2 present in between about 75 and 91 wt %;

CF.sub.3 CH.sub.2 CHFCHF.sub.2 present in between about 76 and 91 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 70 and 89 wt %;

CF.sub.3 CHFCHFCH.sub.2 F present in between about 75 and 91 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 73 and 90 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 77 and 92 wt %;

CHF.sub.2 CHFCHFCHF.sub.2 present in between about 80 and 93 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 77 and 92 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 77 and 92 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 75 and 91 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 70 and 89 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.3 present in between about 65 and 85 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.3 present in between about 67 and 86 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCH.sub.2 F present in between about 86 and 95 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 85 and 94 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 84 and 94 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 84 and 94 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 84 and 94 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CH.sub.2 F present in between about 87 and 95 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CFHCF.sub.2 CH.sub.2 F present in between about 85 and 94 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 85 and 94 wt %;

CF.sub.3 Ch.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 85 and 94 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 86 and 95 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 87 and 95 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 83 and 94 wt %;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 86 and 95 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 85 and 94 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 86 and 95 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 84 and 94 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 86 and 95 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 74 and 91 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.3 present in between about 78 and 92 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.3 present in between about 80 and 93 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 81 and 93 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 78 and 92 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 present in between about 81 and 93 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 82 and 93 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 80 and 93 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 82 and 93 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 80 and 93 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 86 and 95 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 87 and 95 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 87 and 95 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 86 and 95 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 88 and 95 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 89 and 96 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 87 and 95 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 87 and 95 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 83 and 94 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 86 and 95 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 87 and 95 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 87 and 95 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 85 and 94 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 87 and 95 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 87 and 95 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 86 and 95 wt %;

CHF.sub.2 CHFCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 87 and 95 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 85 and 94 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 81 and 93 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 82 and 93 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 83 and 94 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 82 and 93 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 80 and 93 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 84 and 94 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 85 and 94 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 81 and 93 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between 83 and 94 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between 82 and 93 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 CF.sub.3 present in between about 85 and 94 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 84 and 94 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 84 and 94 wt %;

CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 81 and 93 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHFCF.sub.3 present in between about 85 and 94 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 81 and 93 wt %;

CF.sub.3 CF.sub.2 ChFCHFCH.sub.2 CHF.sub.2 present in between about 84 and 94 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 86 and 95 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 84 and 94 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 86 and 95 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 85 and 94 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 84 and 94 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 86 and 95 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCHFCHF.sub.2 present in between about 85 and 94 wt %;

CF.sub.3 CHFCHFCHFCHFCHF.sub.2 present in between about 88 and 95 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 87 and 95 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 81 and 93 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 82 and 93 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 83 and 94 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 82 and 93 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCH.sub.2 F present in between about 85 and 94 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCH.sub.2 F present in between about 86 and 95 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 82 and 94 wt %;

CH.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 70 and 89 wt %;

CH.sub.3 CF.sub.2 CFHCF.sub.2 CF.sub.3 present in between about 73 and 90 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 74 and 91 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 74 and 91 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CF.sub.3 present in between about 78 and 92 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 present in between about 79 and 92 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 77 and 92 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCF.sub.3 present in between about 80 and 93 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 78 and 92 wt %;

CF.sub.2 HCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 78 and 92 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 79 and 92 wt %;

CF.sub.2 HCHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 79 and 92 wt %;

CF.sub.2 HCHFCHFCHFCF.sub.3 present in between about 82 and 93 wt %;

CF.sub.2 HCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 80 and 93 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CFHCF.sub.3 present in between about 80 and 93 wt %;

CF.sub.2 HCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 80 and 93 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 75 and 91 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.3 present in between about 79 and 92 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 77 and 92 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.3 present in between about 78 and 92 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 H present in between about 81 and 92 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 H present in between about 81 and 93 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 80 and 93 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 74 and 91 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 80 and 93 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 H present in between about 83 and 94 wt %;

CF.sub.2 HCHFCF.sub.2 HFCF.sub.2 H present in between about 83 and 94 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 H present in between about 81 and 93 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 78 and 92 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 78 and 92 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CF.sub.3 present in between about 81 and 93 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 82 and 93 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 80 and 93 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 83 and 94 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 81 and 93 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 81 and 93 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 52 and 83 wt %;

CF.sub.3 CHFCHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 81 and 93 wt %;

CF.sub.3 CHFCHFCHFCHFCF.sub.3 present in between about 84 and 94 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 78 and 92 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 80 and 93 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 82 and 93 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 83 and 94 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 81 and 93 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 84 and 94 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 85 and 94 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 83 and 94 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 83 and 94 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 82 and 93 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 83 and 94 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 82 and 93 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CHF.sub.2 present in between about 85 and 94 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 83 and 94 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 83 and 94 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 83 and 94 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 77 and 92 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 81 and 93 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 82 and 93 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 82 and 93 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 80 and 93 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 83 and 94 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 83 and 94 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 81 and 93 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 83 and 94 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 81 and 93 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 74 and 91 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 76 and 91 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 Ch.sub.3 present in between about 77 and 92 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 77 and 92 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 85 and 94 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 86 and 95 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 85 and 94 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 84 and 94 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 86 and 95 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 83 and 94 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 82 and 93 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 83 and 94 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 84 and 94 wt %;

CHF.sub.2 CHFCFF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 83 and 94 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 81 and 93 wt %;

CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 77 and 92 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 present in between about 56 and 72 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.3 present in between about 68 and 86 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.3 present in between about 70 and 89 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.3 present in between about 71 and 90 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.3 present in between about 70 and 89 wt %;

CF.sub.2 HCHFCHFCF.sub.3 present in between about 74 and 91 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.3 present in between about 70 and 89 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 71 and 90 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 H present in between about 75 and 91 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 74 and 91 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 75 and 91 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 74 and 91 wt %;

CF.sub.3 CHFCHFCHFCF.sub.3 present in between about 77 and 92 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 75 and 91 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHF.sub.2 present in between about 78 and 92 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 75 and 91 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHF.sub.2 present in between about 78 and 92 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHF.sub.2 present in between about 77 and 92 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 73 and 90 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 73 and 90 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 74 and 91 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 75 and 91 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 66 and 88 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 78 and 92 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 79 and 92 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 75 and 91 wt %;

CH.sub.3 (CF.sub.2).sub.4 CF.sub.3 present in between about 71 and 90 wt %;

CH.sub.2 FCHF(CF.sub.2).sub.3 CF.sub.3 present in between about 76 and 91 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 F.sub.3 present in between about 78 and 92 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 79 and 92 wt %;

CH.sub.2 F(CF.sub.2).sub.3 CHFCF.sub.3 present in between about 79 and 92 wt %;

CF.sub.2 HCF.sub.2 (CF.sub.2).sub.3 CF.sub.3 present in between about 77 and 92 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 80 and 93 wt %;

CF.sub.2 HCHFCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 81 and 93 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 81 and 93 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 78 and 92 wt %;

CF.sub.2 HCF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 81 and 93 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 81 and 93 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 present in between about 79 and 92 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCHFCF.sub.3 present in between about 81 and 93 wt %;

CF.sub.2 H(CF.sub.2).sub.3 CH.sub.2 CF.sub.3 present in between about 79 and 92 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 77 and 92 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 78 and 92 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 79 and 92 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCF.sub.3 present in between about 77 and 92 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CF.sub.3 present in between about 80 and 93 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCF.sub.3 present in between about 81 and 93 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 78 and 92 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHCFF.sub.2 CF.sub.3 present in between about 77 and 92 wt %;

CH.sub.2 F(CF.sub.2).sub.4 CF.sub.2 H present in between about 78 and 92 wt %;

CF.sub.2 HCHF(CF.sub.2).sub.3 CF.sub.2 H present in between about 81 and 93 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 82 and 93 wt %;

CF.sub.3 CHFCHFCF.sub.3 present in between about 67 and 88 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 62 and 87 wt %;

CF.sub.3 CF.sub.2 CHFCHF.sub.2 present in between about 67 and 88 wt %;

CF.sub.3 CHFCF.sub.2 CHF.sub.2 present in between about 68 and 89 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 64 and 87 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 68 and 89 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 67 and 88 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 71 and 90 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 72 and 90 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 72 and 90 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 68 and 89 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.3 present in between about 72 and 90 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.3 present in between about 72 and 90 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 69 and 89 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 72 and 90 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in bewteen about 75 and 91 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 73 and 90 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 76 and 91 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 76 and 91 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 75 and 91 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 73 and 90 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 75 and 91 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 76 and 91 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 76 and 91 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 76 and 91 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 72 and 90 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 76 and 91 wt %;

CF.sub.2 HCFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 70 and 89 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 70 and 89 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 70 and 89 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.3 present in between about 54 and 71 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.3 present in between about 55 and 72 wt %;

CF.sub.2 HCF.sub.2 CF.sub.3 present in between about 41 and 47 wt %; and

CF.sub.3 CHFCF.sub.3 present in between about 41 and 47 wt %.

6. The mixture of claim 1 wherein the pentafluoropropane is 1,1,2,3,3-pentafluoropropane and the hydrofluorocarbon is independently selected from the group consisting of

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 Ch.sub.3 ;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCHFCHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCHCF.sub.3 ;

CF.sub.3 CH.sub.2 CHFCH.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CH.sub.2 FCHFCHFCF.sub.2 CHF.sub.2 ;

CH.sub.2 FCHFCF.sub.2 CHFCHF.sub.2 ;

CH.sub.2 FCF.sub.2 CHFCHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 ;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 ;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CHFCHFCHFCHF.sub.2 ;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CHFCHFCH.sub.2 F;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CHF.sub.2 CHFCHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCHFCHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CF.sub.2 CFHCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 ;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCHFCHFCHF.sub.2 ;

CHF.sub.2 CHFCF.sub.2 CHFCHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F;

CHF.sub.2 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CHFCHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCH.sub.2 CHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CHFCHFCHFCHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCHFCHFCH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CHFCHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCH.sub.2 F;

CH.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.3 CF.sub.2 CFHCF.sub.2 CF.sub.3 ;

CH.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCHFCHFCF.sub.2 CF.sub.3 ;

CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CHFCHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.2 HCH.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCH.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.2 HCHFCH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCHFCHFCF.sub.3 ;

CF.sub.2 HCHFCF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CH.sub.2 CFHCF.sub.3 ;

CF.sub.2 HCF.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 H;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 H;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CF.sub.2 H;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 H;

CF.sub.2 HCHFCF.sub.2 HFCF.sub.2 H;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 H;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCHFCHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCHFCHFCHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CHFCHFCF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CHF.sub.2 ;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCHFCF.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 H;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CH.sub.3 (CF.sub.2).sub.4 CF.sub.3 ;

CH.sub.2 FCHF(CF.sub.2).sub.3 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 ;

CH.sub.2 F(CF.sub.2).sub.3 CHFCF.sub.3 ;

CF.sub.2 HCF.sub.2 (CF.sub.2).sub.3 CF.sub.3 ;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCF.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CHFCHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CHFCF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCHFCF.sub.3 ;

CF.sub.2 H(CF.sub.2).sub.3 CH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCF.sub.3 ;

CF.sub.3 CHFCHFCHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCHFCF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 ;

CH.sub.2 F(CF.sub.2).sub.4 CF.sub.2 H;

CF.sub.2 HCHF(CF.sub.2).sub.3 CF.sub.2 H;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.3 CHFCHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.3 ; and

CF.sub.3 CHFCF.sub.3.

7. The mixture of claim 6 wherein each hydrofluorocarbon present in the mixture is independently selected from the group consisting of

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 1 and 90 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 95 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.3 present in between about 1 and 95 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.3 present in between about 1 and 95 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.3 present in between about 1 and 97 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 1 and 97 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 1 and 97 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 1 and 97 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 97 wt %;

CFCH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.3 present in between about 1 and 97 wt %;

CF.sub.3 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 1 and 97 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 95 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 1 and 95 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 1 and 97 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 97 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 80 wt %;

CF.sub.3 CHFCH.sub.2 CHF.sub.2 present in between about 1 and 90 wt %;

CF.sub.3 CH.sub.2 CHFCHF.sub.2 present in between about 1 and 90 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 1 and 70 wt %;

CF.sub.3 CHFCHFCH.sub.2 F present in between about 1 and 90 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 90 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 90 wt %;

CHF.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 85 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 90 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 90 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 90 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 70 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.3 present in between about 1 and 70 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.3 present in between about 1 and 70 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CFHCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 1 and 90 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.3 present in between about 1 and 90 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.3 present in between about 1 and 90 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CHFCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CH.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.3 CF.sub.2 CFHCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCHFCHFCHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CFHCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 H present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 H present in between about 1 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 1 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 1 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 1 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 H present in between about 1 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 HFCF.sub.2 H present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 H present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCHFCHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CHFCFF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 50 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.3 present in between about 1 and 70 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.3 present in between about 1 and 75 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 75 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 75 wt %;

CF.sub.2 HCHFCHFCF.sub.3 present in between about 1 and 75 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.3 present in between about 1 and 75 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 1 and 75 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 H present in between about 1 and 75 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 1 and 95 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 1 and 95 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 95 wt %;

CF.sub.3 CHFCHFCHFCF.sub.3 present in between about 1 and 95 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 95 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHF.sub.2 present in between about 1 and 95 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 95 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 90 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 90 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 90 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 90 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 80 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 95 wt %;

CH.sub.3 (CF.sub.2).sub.4 CF.sub.3 present in between about 1 and 95 wt %;

CH.sub.2 FCHF(CF.sub.2).sub.3 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 F.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 F(CF.sub.2).sub.3 CHFCF.sub.3 present in between about 1 and 99 wt %; CF.sub.2 HCF.sub.2 (CF.sub.2).sub.3 CF.sub.3 present in between about 1 and 99 wt %; CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %; CF.sub.2 HCHFCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %; CF.sub.2 HCHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %; CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %; CF.sub.2 HCF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %; CF.sub.2 HCF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CHFCHFCF.sub.3 present in between about 1 and 99 wt %; CF.sub.2 H(CF.sub.2).sub.3 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %; CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %; CF.sub.3 CHFCHFCHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %; CF.sub.3 CHFCF.sub.2 CHFCHFCF.sub.3 present in between about 1 and 99 wt %; CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CHCFF.sub.2 CF.sub.3 present in between about 1 and 99 wt %; CH.sub.2 F(CF.sub.2).sub.4 CF.sub.2 H present in between about 1 and 99 wt %; CF.sub.2 HCHF(CF.sub.2).sub.3 CF.sub.2 H present in between about 1 and 99 wt %; CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 1 and 99 wt %; CF.sub.3 CHFCHFCF.sub.3 present in between about 1 and 70 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 60 wt %; CF.sub.3 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 70 wt %; CF.sub.3 CHFCF.sub.2 CHF.sub.2 present in between about 1 and 70 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 70 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 70 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 90 wt %; CF.sub.2 HCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 95 wt %; CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 1 and 95 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 1 and 95 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 95 wt %; CF.sub.3 CF.sub.2 CHFCHFCF.sub.3 present in between about 1 and 95 wt %; CF.sub.3 CHFCF.sub.2 CHFCF.sub.3 present in between about 1 and 95 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 95 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 1 and 95 wt %; CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %; CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %; CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %; CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 95 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 95 wt %; CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 95 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.3 present in between about 20 and 70 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.3 present in between about 20 and 70 wt %; CF.sub.2 HCF.sub.2 CF .sub.3 present in between about 10 and 50 wt %; and CF.sub.3 CHFCF.sub.3 present in between about 10 and 50 wt %.

8. The mixture of claim 6 wherein each hydrofluorocarbon present in the mixture is independently selected from the group consisting of CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 10 and 88 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 93 wt %; CF.sub.3 CF.sub.2 CHFCHFCH.sub.3 present in between about 10 and 93 wt %; CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 93 wt %; CF.sub.3 CHFCF.sub.2 CHFCH.sub.3 present in between about 10 and 93 wt %; CF.sub.3 CHFCHFCF.sub.2 CH.sub.3 present in between about 10 and 95 wt %; CF.sub.3 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 10 and 95 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 10 and 95 wt %; CF.sub.3 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 10 and 95 wt %; CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCHFCH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 95 wt %; CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCH.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CHFCH.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 10 and 95 wt %; CF.sub.3 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 10 and 95 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 93 wt %; CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CH.sub.2 FCHFCHFCF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CH.sub.2 FCHFCF.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CH.sub.2 FCF.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH .sub.3 present in between about 10 and 93 wt %; CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 10 and 95 wt %; CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 95 wt %; CHF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 10 and 97 wt %; CH.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CH.sub.2 FCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 78 wt %; CF.sub.3 CHFCHF.sub.2 CHF.sub.2 present in between about 10 and 88 wt %; CF.sub.3 CH.sub.2 CHFCHF.sub.2 present in between about 10 and 88 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 10 and 68 wt %; CF.sub.3 CHFCHFCH.sub.2 F present in between about 10 and 88 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 88 wt %; CHF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 88 wt %; CHF.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 83 wt %; CHF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 88 wt %; CHF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 88 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 88 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 68 wt %; CF.sub.3 CF.sub.2 CHFCH.sub.3 present in between about 10 and 68 wt %; CF.sub.3 CHFCF.sub.2 CH.sub.3 present in between about 10 and 68 wt %; CF.sub.3 CHFCHFCF.sub.2 CHFCH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCHFCF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CFHCF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt % CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 10 and 88 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.3 present in between about 10 and 88 wt %; CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 10 and 97 wt %; CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CHF.sub.2 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CHF.sub.2 CHFCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 10 and 97 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 97 wt %; CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 97 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 97 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 97 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCHFCH.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCH.sub.2 CHFCF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCHFCHFCHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CHFCHFCHFCH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CHFCHFCH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 97 wt %; CH.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 88 wt %; CH.sub.3 CF.sub.2 CFHCF.sub.2 CF.sub.3 present in between about 10 and 88 wt %; CH.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 10 and 93 wt %; CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 93 wt %; CH.sub.2 FCHFCHFCF.sub.2 CF.sub.3 present in between about 10 and 93 wt %; CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 present in between about 10 and 93 wt %; CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 95 wt %; CH.sub.2 FCF.sub.2 CHFCHFCF.sub.3 present in between about 10 and 93 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.2 HCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 10 and 93 wt %; CF.sub.2 HCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 10 and 93 wt %; CF.sub.2 HCHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 93 wt %; CF.sub.2 HCHFCHFCHFCF.sub.3 present in between about 10 and 97 wt %; CF.sub.2 HCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.2 HCF.sub.2 CH.sub.2 CFHCF.sub.3 present in between about 10 and 97 wt %; CF.sub.2 HCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 93 wt %; CF.sub.3 CH.sub.2 CHFCHFCF.sub.3 present in between about 10 and 93 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 93 wt %; CF.sub.3 CHFCH.sub.2 CHFCF.sub.3 present in between about 10 and 93 wt %; CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 H present in between about 10 and 97 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 H present in between about 10 and 97 wt %; CH.sub.2 FCHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 10 and 97 wt %; CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 10 and 93 wt %; CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 10 and 97 wt %; CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 H present in between about 10 and 97 wt %; CF.sub.2 HCHFCF.sub.2 HFCF.sub.2 H present in between about 10 and 97 wt %; CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 H present in between about 10 and 97 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 93 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCHFCHFCF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCF.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCHFCF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CHF.sub.2 CHFCFF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 97 wt %; CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 48 wt %; CH.sub.2 FCHFCF.sub.2 CF.sub.3 present in between about 10 and 68 wt %; CH.sub.2 FCF.sub.2 CHFCF.sub.3 present in between about 10 and 73 wt %; CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 73 wt %; CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 73 wt %; CF.sub.2 HCHFCHFCF.sub.3 present in between about 10 and 73 wt %; CF.sub.3 CH.sub.2 CHFCF.sub.3 present in between about 10 and 73 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 10 and 73 wt %; CF.sub.2 HCHFCF.sub.2 CF.sub.2 H present in between about 10 and 73 wt %; CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 10 and 93 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 10 and 93 wt %; CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 93 wt %; CF.sub.3 CHFCHFCHFCF.sub.3 present in between about 10 and 93 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 93 wt %; CF.sub.3 CHFCHFCF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 93 wt %; CF.sub.3 CHFCF.sub.2 CHFCHF.sub.2 present in between about 10 and 93 wt %; CF.sub.3 CF.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 93 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 88 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 88 wt %; CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 88 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 88 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 78 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 93 wt %; CH.sub.3 (CF.sub.2).sub.4 CF.sub.3 present in between about 10 and 93 wt %; CH.sub.2 FCHF(CF.sub.2).sub.3 CF.sub.3 present in between about 10 and 97 wt %; CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 F.sub.3 present in between about 10 and 97 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CH.sub.2 F(CF.sub.2).sub.3 CHFCF.sub.3 present in between about 10 and 97 wt %; CF.sub.2 HCF.sub.2 (CF.sub.2).sub.3 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.2 HCHFCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.2 HCHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 10 and 97 wt %; CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.2 HCF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.2 HCF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 10 and 97 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CHFCHFCF.sub.3 present in between about 10 and 97 wt %; CF.sub.2 H(CF.sub.2).sub.3 CH.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCHFCF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CHFCHFCF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CHCFF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CH.sub.2 F(CF.sub.2).sub.4 CF.sub.2 H present in between about 10 and 97 wt %; CF.sub.2 HCHF(CF.sub.2).sub.3 CF.sub.2 H present in between about 10 and 97 wt %; CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCF.sub.3 present in between about 10 and 68 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 58 wt %; CF.sub.3 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 68 wt %; CF.sub.3 CHFCF.sub.2 CHF.sub.2 present in between about 10 and 68 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 68 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 68 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 88 wt %; CF.sub.2 HCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 93 wt %; CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 10 and 93 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 10 and 93 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 93 wt %; CF.sub.3 CF.sub.2 CHFCHFCF.sub.3 present in between about 10 and 93 wt %; CF.sub.3 CHFCF.sub.2 CHFCF.sub.3 present in between about 10 and 93 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 93 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 10 and 93 wt %; CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 97 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 97 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 93 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 93 wt %; CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 93 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.3 present in between about 30 and 68 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.3 present in between about 30 and 68 wt %; CF.sub.2 HCF.sub.2 CF.sub.3 present in between about 20 and 48 wt %; and CF.sub.3 CHFCF.sub.3 present in between about 20 and 48 wt %.

9. The mixture of claim 6 wherein each hydrofluorocarbon present in the mixture is independently selected from the group consisting of CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 30 and 69 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 31 and 72 wt %; CF.sub.3 CF.sub.2 CHFCHFCH.sub.3 present in between about 31 and 72 wt %; CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 31 and 72 wt %; CF.sub.3 CHFCF.sub.2 CHFCH.sub.3 present in between about 31 and 72 wt %; CF.sub.3 CHFCHFCF.sub.2 CH.sub.3 present in between about 31 and 74 wt %; CF.sub.3 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 31 and 74 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 31 and 74 wt %; CF.sub.3 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 31 and 74 wt %; CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CHFCHFCHFCH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 31 and 74 wt %; CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CHFCHFCH.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CHFCH.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CHFCHFCHF.sub.2 present in between about 32 and 74 wt %; CF.sub.3 CH.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 31 and 74 wt %; CF.sub.3 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 31 and 72 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 31 and 75 wt %; CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CH.sub.2 FCHFCHFCF.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CH.sub.2 FCHFCF.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt %; CH.sub.2 FCF.sub.2 CHFCHFCHF.sub.2 present in between about 32 and 75 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 31 and 72 wt %; CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 31 and 74 wt %; CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 31 and 74 wt %; CHF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CHF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CHF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt %; CHF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 32 and 75 wt %; CH.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CH.sub.2 FCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 27 and 61 wt %; CF.sub.3 CHFCHF.sub.2 CHF.sub.2 present in between about 30 and 69 wt %; CF.sub.3 CH.sub.2 CHFCHF.sub.2 present in between about 30 and 69 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 25 and 54 wt %; CF.sub.3 CHFCHFCH.sub.2 F present in between about 30 and 69 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 30 and 69 wt %; CHF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 30 and 69 wt %; CHF.sub.2 CHFCHFCHF.sub.2 present in between about 28 and 65 wt %; CHF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 30 and 69 wt %; CHF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 30 and 69 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 30 and 69 wt %0 CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 25 and 54 wt %; CF.sub.3 CF.sub.2 CHFCH.sub.3 present in between about 25 and 54 wt %; CF.sub.3 CHFCF.sub.2 CH.sub.3 present in between about 25 and 54 wt %; CF.sub.3 CHFCHFCF.sub.2 CHFCH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CHFCHFCHFCF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CFHCF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 30 and 69 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.3 present in between about 30 and 69 wt %; CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.3 present in between about 32 and 75 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 present in between about 32 and 75 wt %; CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 75 wt %; CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 75 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt %; CHF.sub.2 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 32 and 75 wt %; CHF.sub.2 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 32 and 75 wt %; CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt %; CHF.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 32 and 75 wt %; CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 32 and 75 wt %; CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 32 and 75 wt %; CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CHF.sub.2 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CHF.sub.2 CHFCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 32 and 75 wt %; CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 32 and 75 wt %; CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 75 wt %; CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 75 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 75 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 32 and 75 wt %; CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 32 and 75 wt %; CF.sub.3 CHFCHFCHFCH.sub.2 CF.sub.3 present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 32 and 75 wt %; CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 75 wt %; CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 75 wt %; CF.sub.3 CHFCHFCH.sub.2 CHFCF.sub.3 present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CHFCF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CHFCHFCHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CHFCHFCHFCHFCHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CH.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CHFCHFCHFCH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CHFCF.sub.2 CHFCHFCH.sub.2 F present in between about 32 and 75 wt %; CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 32 and 75 wt %; CH.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 30 and 69 wt %; CH.sub.3 CF.sub.2 CFHCF.sub.2 CF.sub.3 present in between about 30 and 69 wt %; CH.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 31 and 72 wt %; CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 31 and 72 wt %; CH.sub.2 FCHFCHFCF.sub.2 CF.sub.3 present in between about 31 and 72 wt %; CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 present in between about 31 and 74 wt %; CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 31 and 72 wt %; CH.sub.2 FCF.sub.2 CHFCHFCF.sub.3 present in between about 32 and 75 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 31 and 72 wt. %;

CF.sub.2 HCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 31 and 72 wt. %;

CF.sub.2 HCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 31 and 72 wt. %;

CF.sub.2 HCHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 31 and 72 wt. %;

CF.sub.2 HCHFCHFCHFCF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.2 HCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.2 HCF.sub.2 CH.sub.2 CFHCF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.2 HCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 31 and 72 wt. %;

CF.sub.3 CH.sub.2 CHFCHFCH.sub.3 present in between about 31 and 72 wt. %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 31 and 72 wt. %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.3 present in between about 31 and 72 wt. %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 H present in between about 32 and 75 wt. %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 H present in between about 32 and 75 wt. %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 32 and 75 wt. %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 31 and 72 wt. %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 32 and 75 wt. %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 H present in between about 32 and 75 wt. %;

CF.sub.2 HCHFCF.sub.2 HFCF.sub.2 H present in between about 32 and 75 wt. %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 H present in between about 32 and 75 wt. %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 31 and 72 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCHFCHFCHFCF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 ad 75 wt. %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCHFCF.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCHFCHFCF.sub.2 CHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 presentin in between about 32 and 75 wt. %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 32 and 75 wt. %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 32 and 75 wt. %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt. %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt. %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between aout 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 75 wt. %;

CFH.sub.2 CF.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 32 and 75 wt. %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt. %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt. %;

CHF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 75 wt.

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 32 and 75 wt. %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 75 wt. %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 32 and 75 wt. %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 32 and 75 wt. %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt. %;

CHF.sub.2 CHFCFF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt. %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt. %;

CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 75 wt. %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 20 and 39 wt. %;

CH.sub.2 FCHFCF.sub.2 CF.sub.3 present in between about 25 and 54 wt. %;

CH.sub.2 FCF.sub.2 CHFCF.sub.3 present in between about 26 and 57 wt. %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.3 present in between about 26 and 57 wt. %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.3 present in between about 26 and 57 wt. %;

CF.sub.2 HCHFCHFCF.sub.3 present in between about 26 and 57 wt. %;

CF.sub.3 CH.sub.2 CHFCF.sub.3 present in between about 26 and 57 wt. %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 26 and 57 wt. %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 H present in between about 26 and 57 wt. %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.3 preesent in between about 31 and 72 wt. %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 31 and 72 wt. %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 31 and 72 wt. %;

CF.sub.3 CHFCHFCHFCF.sub.3 present in between about 31 and 72 wt. %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 31 and 72 wt. %;

CF.sub.3 CHFCHFCF.sub.2 CHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 31 and 72 wt. %;

CF.sub.3 CHFCF.sub.2 CHFCHF.sub.2 present in between about 31 and 72 wt. %;

CF.sub.3 CF.sub.2 CHFCHFCHF.sub.2 present in between about 31 nd 72 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 30 and 69 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 30 and 69 wt. %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 30 and 69 wt. %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between aout 30 and 69 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 27 and 61 wt. %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt. %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 32 and 75 wt. %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 31 and 75 wt. %;

CH.sub.3 (CF.sub.2).sub.4 CF.sub.3 present in between about 31 and 72 wt. %;

CH.sub.2 FCHF(CH.sub.2) .sub.3 CF.sub.3 present in between about 32 nd 75 wt. %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 F.sub.3 present in between about 32 and 75 wt. %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CH.sub.2 F(CF.sub.2).sub.3 CHFCF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.2 HCF.sub.2 (CF.sub.2).sub.3 CF.sub.3 present in betwen about 32 nd 75 wt. %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.2 HCHFCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between aout 32 and 75 wt. %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.2 HCF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.2 HCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in betwen about 32 and 75 wt. %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCHFCF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.2 H(CF.sub.2).sub.3 CH.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCHFCHFCF.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCF.sub.2 CHFCHFCF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CH.sub.2 CHCFF.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CH.sub.2 F(CF.sub.2).sub.4 CF.sub.2 H present in between about 32 and 75 wt. %;

CF.sub.2 HCHF(CF.sub.2).sub.3 CF.sub.2 H present in between about 32 nd 75 wt. %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 32 and 75 wt. %;

CF.sub.3 CHFCHFCF.sub.3 present in between about 25 and 54 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 22 and 46 wt. %;

CF.sub.3 CF.sub.2 CHFCHF.sub.2 present in between about 25 and 54 wt. %;

CF.sub.3 CHFCF.sub.2 CHF.sub.2 present in between about 25 and 54 wt. %;

CF.sub.3 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 25 and 54 wt. %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 25 and 54 wt. %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 30 and 69 wt. %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 31 and 72 wt. %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 31 and 72 wt. %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.3 present in betweeen about 31 and 72 wt. %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 31 and 72 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.3 present in between about 31 and 72 wt. %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.3 present in between about 31 and 72 wt. %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 31 and 72 wt. %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between aout 31 and 72 wt. %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCF.sub.3 prsent in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 75 wt. %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 75 wt. %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 present in between about 31 and 72 wt. %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 31 and 72 wt. %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 31 and 72 wt. %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.3 present in between about 40 and 59 wt. %;

CF.sub.3 CHFCF.sub.2 CF.sub.3 present in between about 40 and 59 wt. %;

CF.sub.2 HCF.sub.2 CF.sub.3 present in between about 27 and 41 wt. %; and

CF.sub.3 CHFCF.sub.3 presentin between about 27 and 41 wt. %.

10. The mixture of claim 1 wherein the pentafluoropropane is 1,1,1,2,3-pentafluoropropane and the hydrofluorocarbon is independently selected from the from the group consisting of

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCHFCHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CH.sub.2 FCHFCHFCF.sub.2 CHF.sub.2 ;

CH.sub.2 FCHFCF.sub.2 CHFCHF.sub.2 ;

CH.sub.2 FCF.sub.2 CHFCHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 ;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 ;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CHFCHFCHFCHF.sub.2 ;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CHFCHFCH.sub.2 F;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CHF.sub.2 CHFCHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCHFCHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CHFCF.sub. CF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 ;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCHFCHFCHF.sub.2 ;

CHF.sub.2 CHFCF.sub.2 CHFCHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F;

CHF.sub.2 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CHFCHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCH.sub.2 CHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CHFCHFCHFCHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCHFCHFCH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CHFCHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCH.sub.2 F;

CH.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.3 CF.sub.2 CFHCF.sub.2 CF.sub.3 ;

CH.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCHFCHFCF.sub.2 CF.sub.3 ;

CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CHFCHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.2 HCH.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCH.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.2 HCHFCH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCHFCHFCF.sub.3 ;

CF.sub.2 HCHFCF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CH.sub.2 CFHCF.sub.3 ;

CF.sub.2 HCF.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 H;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 H;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CF.sub.2 H;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 H;

CF.sub.2 HCHFCF.sub.2 HFCF.sub.2 H;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 H;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCHFCHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCHFCHFCHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CHFCHFCF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CHF.sub.2 ;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCHFCF.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 H;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CH.sub.3 (CF.sub.2).sub.4 CF.sub.3 ;

CH.sub.2 FCHF(CF.sub.2).sub.3 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 ;

CH.sub.2 F(CF.sub.2).sub.3 CHFCF.sub.3 ;

CF.sub.2 HCF.sub.2 (CF.sub.2).sub.3 CF.sub.3 ;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCF.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CHFCHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CHFCF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCHFCF.sub.3 ;

CF.sub.2 H(CF.sub.2).sub.3 CH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCF.sub.3 ;

CF.sub.3 CHFCHFCHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCHFCF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 ;

CH.sub.2 F(CF.sub.2).sub.4 CF.sub.2 H;

CF.sub.2 HCHF(CF.sub.2).sub.3 CF.sub.2 H;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.3 CHFCHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.3 and;

CF.sub.3 CHFCF.sub.3.

11. The mixture of claim 10 wherein each hydrofluorocarbon present in the mixture is independently selected from the group consisting of

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 1 and 99 wt. %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt. %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.3 present in between about 1 and 99 wt. %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt. %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.3 present in between about 1 and 99 wt. %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.3 present in between about 1 and 99 wt. %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 1 and 99 wt. %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt. %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 1 and 99 wt. %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt. %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt. %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt. %;

CF.sub.3 CHFCHFCHFCH.sub.2 F present in between abaout 1 and 99 wt. %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between abut 1 and 99 wt. %;

CFCH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between abut 1 and 99 wt. %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt. %;

CF.sub.3 CHFCHFCH.sub.2 CHF.sub.2 present in between about 1 and 99 wt. %;

CF.sub.3 CHFCH.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt. %;

CF.sub.3 CH.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 99 wt. %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt. %;

CF.sub.3 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 1 and 99 wt. %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt. %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt. %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt. %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt. %;

CH.sub.2 FCHFCHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt. %;

CH.sub.2 FCHFCF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt. %;

CH.sub.2 FCF.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 99 wt. %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 1 and 99 wt. %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 1 and 99 wt. %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt. %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 1 and 99 wt. %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.3 present in between about 1 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.3 present in between about 1 and 95 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CFHCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CHFCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CHF.sub.CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CH.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.3 CF.sub.2 CFHCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.FCF.sub.2 CHFCHFCF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CFHCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 H present in between about 1 and 99 wt %;

CF.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 H present in between about 1 and 99 wt %;

CF.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 H present in between about 1 and 99 wt %;

CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 1 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 1 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 H present in between about 1 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 HFCF.sub.2 H present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 H present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCHFCHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHF.sub.2 CHFCFF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 80 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.3 present in between about 1 and 95 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 1 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 H present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CH.sub.3 (CF.sub.2).sub.4 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCHF(CF.sub.2).sub.3 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 F.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between abaout 1 and 99 wt %;

CH.sub.2 F(CF.sub.2).sub.3 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 (CF.sub.2).sub.3 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 H(CF.sub.2).sub.3 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHCFF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CH.sub.2 F(CF.sub.2).sub.4 CF.sub.2 H present in between about 1 and 99 wt %;

CF.sub.2 HCHF(CF.sub.2).sub.3 CF.sub.2 H present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.3 present in between about 1 and 95 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 90 wt %;

CF.sub.3 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CHF.sub.2 present in between about 1 and 95 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 1 and 90 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 95 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.3 present in between about 1 and 90 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.3 present in between about 1 and 90 wt %;

CF.sub.2 HCF.sub.2 CF.sub.3 present in between about 1 and 60 wt %;

CF.sub.3 CHFCF.sub.3 present in between about 1 and 60 wt %.

12.

12. The mixture of claim 10 wherein each hydrofluorocarbon present in the mixture is independently selected from the group consisting of

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 10 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.3 present in between about 10 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.3 present in between about 10 and 95 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CFHCF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 10 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CHF.sub.2 CHFCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCHFCHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 99 wt %;

CH.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CH.sub.3 CF.sub.2 CFHCF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCF.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCHFCHFCHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CFHCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 H present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCH.sub.2 H present in between about 10 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 10 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 F.sub.2 CF.sub.2 H present in between about 10 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 10 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 H present in between about 10 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 HFCF.sub.2 H present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 H present in between about 10 and 99 wt %;

CF.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCHFCHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CHF.sub.2 CHFCFF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 80 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.3 present in between about 10 and 95 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HDHFCHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 10 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 H present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CH.sub.3 (CF.sub.2) .sub.4 CF.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 FCHF(CF.sub.2).sub.3 CF.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 F.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 F(CF.sub.2).sub.3 CHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 (CF.sub.2).sub.3 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 H(CF.sub.2).sub.3 CH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHCFF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CH.sub.2 F(CF.sub.2).sub.4 CF.sub.2 H present in between about 10 and 99 wt %;

CF.sub.2 HCHF(CF.sub.2).sub.3 CF.sub.2 H present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.3 present in between about 10 and 80 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.3 present in between about 10 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.3 present in between about 10 and 50 wt %; and

CF.sub.3 CHFCF.sub.3 present in between about 10 and 50 wt %.

13.

13. The mixture of claim 10 wherein each hydrofluorocarbon present in the mixture is independently selected from the group consisting of

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCH.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CHFCHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 32 and 77 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CHFCHFCHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 32 and 77 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 79 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.3 present in between about 31 and 74 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.3 present in between about 31 and 74 wt %;

CH.sub.3 CHFCHFCF.sub.2 CHFCH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CFHCF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 32 and 77 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CHF.sub.2 CHFCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCHFCHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 32 and 77 wt %;

CH.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CH.sub.3 CF.sub.2 CFHCF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCF.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCHFCHFCHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CFHCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 H present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 H present in between about 32 and 77 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 32 and 77 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 32 and 77 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 32 and 77 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 H present in between about 32 and 77 wt %;

CF.sub.2 HCHFCF.sub.2 HFCF.sub.2 H present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 H present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCHFCHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CHF.sub.2 CHFCFF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 28 and 63 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.3 present in between about 31 and 74 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCHFCHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 32 and 77 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 H present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CH.sub.3 (CF.sub.2).sub.4 CF.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 FCHF(CF.sub.2).sub.3 CF.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 F.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 F(CF.sub.2).sub.3 CHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 (CF.sub.2).sub.3 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCHFCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 H(CF.sub.2).sub.3 CH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHCFF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CH.sub.2 F(CF.sub.2).sub.4 CF.sub.2 H present in between about 32 and 77 wt %;

CF.sub.2 HCHF(CF.sub.2).sub.3 CF.sub.2 H present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCF.sub.3 present in between about 31 and 74 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 30 and 70 wt %;

CF.sub.3 CF.sub.2 CHFCHF.sub.2 present in between about 31 and 74 wt %;

CF.sub.3 CHFCF.sub.2 CHF.sub.2 present in between about 31 and 74 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 30 and 70 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 31 and 74 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 32 and 77 wt %;

CF.sub.2 HCFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 32 and 77 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.3 present in between about 28 and 63 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.3 present in between about 28 and 63 wt %;

CF.sub.2 HCF.sub.2 CF.sub.3 present in between about 20 and 40 wt %; and

CHF.sub.3 CHFCF.sub.3 present in between about 20 and 40 wt %.

14.

14. The mixture of claim 1 wherein the pentafluoropropane is 1,1,1,3,3-pentafluoropropane and the hydrofluorocarbon is independently selected from the group consisting of

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 ;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCHFCHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCH.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CH.sub.2 FCHFCHFCF.sub.2 CHF.sub.2 ;

CH.sub.2 FCHFCF.sub.2 CHFCHF.sub.2 ;

CH.sub.2 FCF.sub.2 CHFCHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 ;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 ;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CHFCHFCHFCHF.sub.2 ;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CHFCHFCH.sub.2 F;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CHF.sub.2 CHFCHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCHFCHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CF.sub.2 CFHCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 ;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCHFCHFCHF.sub.2 ;

CHF.sub.2 CHFCF.sub.2 CHFCHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F;

CHF.sub.2 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CHFCHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCH.sub.2 CHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CHF.sub.2

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CHFCHFCHFCHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCHFCHFCH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CHFCHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCH.sub.2 F;

CH.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.3 CF.sub.2 CFHCF.sub.2 CF.sub.3 ;

CH.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCHFCHFCF.sub.2 CF.sub.3 ;

CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CHFCHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.2 HCH.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCH.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.2 HCHFCH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCHFCHFCF.sub.3 ;

CF.sub.2 HCHFCF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CH.sub.2 CFHCF.sub.3 ;

CF.sub.2 HCF.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 H;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 H;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CF.sub.2 H;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 H;

CF.sub.2 HCHFCF.sub.2 HFCF.sub.2 H;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 H;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCHFCHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCHFCHFCHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CHFCHFCF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CHF.sub.2 ;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCHFCF.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CHFCF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 H;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCHFCHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 F;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CH.sub.3 (CF.sub.2).sub.4 CF.sub.3 ;

CH.sub.2 FCHF(CF.sub.2).sub.3)CF.sub.3 ;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 ;

CH.sub.2 F(CF.sub.2).sub.3 CHFCF.sub.3 ;

CF.sub.2 HCF.sub.2 (CF.sub.2).sub.3 CF.sub.3 ;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCF.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CHFCHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CHFCF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCHFCF.sub.3 ;

CF.sub.2 H(CF.sub.2).sub.3 CH.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCF.sub.3 ;

CF.sub.3 CHFCHFCHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCHFCF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 ;

CH.sub.2 F(CF.sub.2).sub.4 CF.sub.2 H;

CF.sub.2 HCHF(CF.sub.2).sub.3 CF.sub.2 H;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.3 CHFCHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.3 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CH.sub.2 CHF.sub.2 ;

CHF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCF.sub.3 ;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.3 ;

CF.sub.3 CHFCF.sub.2 CF.sub.3 ;

CF.sub.2 HCF.sub.2 CF.sub.3 ; and

CF.sub.3 CHFCF.sub.3.

15. The mixture of claim 14 wherein each hydrofluorocarbon present in the mixture is independently selected from the group consisting of

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 60 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 65 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.3 present in between about 66 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 68 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.3 present in between about 69 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.3 present in between about 70 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 69 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 71 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 72 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 74 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 74 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 74 and 99 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 F present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 70 and 99 wt %;

CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 73 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 73 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHF.sub.2 present in between about 75 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCHF.sub.2 present in between about 75 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCHF.sub.2 present in between about 76 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 70 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 71 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 68 and 99 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 73 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 75 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 75 and 99 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CHF.sub.2 present in between about 76 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCHF.sub.2 present in between about 77 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCHF.sub.2 present in between about 77 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 69 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 71 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 71 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 76 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 77 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 76 and 99 wt %;

CHF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 79 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 74 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 75 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 61 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHF.sub.2 present in between about 66 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHF.sub.2 present in between about 67 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 60 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 F present in between about 66 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 64 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 68 and 99 wt %;

CHF.sub.2 CHFCHFCHF.sub.2 present in between about 71 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 68 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 69 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 65 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 59 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.3 present in between about 54 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.3 present in between about 57 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCH.sub.2 F present in between about 79 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 77 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 76 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 77 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 77 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CH.sub.2 F present in between about 79 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CFHCF.sub.2 CH.sub.2 F present in between about 77 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 77 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 77 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 79 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 79 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 75 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 78 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 77 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 78 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 76 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 79 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 65 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.3 present in between about 70 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.3 present in between about 72 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 73 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 69 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 present in between about 73 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 74 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 72 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 75 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 72 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 78 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 79 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 79 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 79 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 81 and 99 wt %;

CHF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 81 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 80 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 79 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 75 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 78 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 79 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 79 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 77 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 80 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 80 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 78 and 99 wt %;

CHF.sub.2 CHFCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 80 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 77 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 72 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 74 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 75 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 74 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 71 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 77 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 78 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 73 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 74 and 99 wt %;

CF.sub.3 CHFCHFCHFCH.sub.3 CF.sub.3 present in between about 78 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 77 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 76 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 73 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHFCF.sub.3 present in between about 77 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 73 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CHF.sub.2 present in between about 77 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 78 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 76 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 79 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 77 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 77 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 78 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCHFCHF.sub.2 present in between about 78 and 99 wt %;

CF.sub.3 CHFCHFCHFCHFCHF.sub.2 present in between about 80 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 79 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 72 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 75 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 74 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCH.sub.2 F present in between about 77 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCH.sub.2 F present in between about 78 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 76 and 99 wt %;

CH.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 60 and 99 wt %;

CH.sub.3 CF.sub.2 CFHCF.sub.2 CF.sub.3 present in between about 63 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 64 and 99 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 64 and 99 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CF.sub.3 present in between about 69 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 present in between about 71 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 68 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCF.sub.3 present in between about 72 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 70 and 99 wt %;

CF.sub.2 HCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 69 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 71 and 99 wt %;

CF.sub.2 HCHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 70 and 99 wt %;

CF.sub.2 HCHFCHFCHFCF.sub.3 present in between about 74 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 72 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CFHCF.sub.3 present in between about 71 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 72 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 66 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.3 present in between about 70 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 68 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.3 present in between about 70 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 H present in between about 73 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 H present in between about 72 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 71 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 64 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 72 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 H present in between about 75 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 HFCF.sub.2 H present in between about 75 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 H present in between about 73 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 69 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 69 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CF.sub.3 present in between about 73 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 72 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 75 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 73 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 73 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 34 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 73 and 99 wt %;

CF.sub.3 CHFCHFCHFCHFCF.sub.3 present in between about 76 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 69 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 72 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 74 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 73 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 76 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 77 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 75 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCHF.sub.2 present in between about 78 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 76 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 74 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 75 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CHF.sub.2 present in between about 77 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 76 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 75 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 68 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 73 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 74 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 74 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 71 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 75 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 73 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 76 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 73 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 65 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 67 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 69 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 69 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 77 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 78 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 78 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 76 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 78 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 75 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 74 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 76 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 76 and 99 wt %;

CHF.sub.2 CHFCFF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 75 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 72 and 99 wt %;

CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 68 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 46 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.3 present in between about 58 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.3 present in between about 60 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.3 present in between about 61 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.3 present in between about 59 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.3 present in between about 64 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.3 present in between about 59 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 61 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 H present in between about 65 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 64 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 65 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 64 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.3 present in between about 68 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 66 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHF.sub.2 present in between about 69 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 66 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHF.sub.2 present in between about 69 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHF.sub.2 present in between about 68 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 63 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 63 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 65 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 66 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 54 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 69 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 70 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 66 and 99 wt %;

CH.sub.3 (CF.sub.2).sub.4 CF.sub.3 present in between about 60 and 99 wt %;

CH.sub.2 FCHF(CF.sub.2).sub.3 CF.sub.3 present in between about 67 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 F.sub.3 present in between about 69 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 70 and 99 wt %;

CH.sub.2 F(CF.sub.2).sub.3 CHFCF.sub.3 present in between about 70 and 99 wt %;

CF.sub.2 HCF.sub.2 (CF.sub.2).sub.3 CF.sub.3 present in between about 68 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 71 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 73 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 73 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 69 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 73 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 73 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 71 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCHFCF.sub.3 present in between about 73 and 99 wt %;

CF.sub.2 H(CF.sub.2).sub.3 CH.sub.2 CF.sub.3 present in between about 70 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 68 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 70 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 70 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCF.sub.3 present in between about 68 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CF.sub.3 present in between about 72 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCF.sub.3 present in between about 73 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 70 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHCFF.sub.2 CF.sub.3 present in between about 68 and 99 wt %;

CH.sub.2 F(CF.sub.2).sub.4 CF.sub.2 H present in between about 70 and 99 wt %;

CF.sub.2 HCHF(CF.sub.2).sub.3 CF.sub.2 H present in between about 73 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 74 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.3 present in between about 56 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 49 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHF.sub.2 present in between about 55 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHF.sub.2 present in between about 56 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 51 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 56 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 56 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 61 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 62 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 62 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 57 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.3 present in between about 61 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.3 present in between about 62 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 58 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 62 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 66 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 63 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 67 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 67 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 66 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 63 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 66 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 67 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 67 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 67 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 62 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 67 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 59 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 59 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 59 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.3 present in between about 44 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.3 present in between about 45 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.3 present in between about 36 and 99 wt %; and

CF.sub.3 CHFCF.sub.3 present in between about 37 and 90 wt %.

16. The mixture of claim 14 wherein each hydrofluorocarbon present in the mixture is independently selected from the group consisting of

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 70 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.3 present in between about 76 and 99 wt %;

CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 78 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.3 present in between about 79 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.3 present in between about 80 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 79 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 81 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 82 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 84 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 84 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 84 and 99 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 F present in between about 85 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 80 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 83 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 83 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHF.sub.2 present in between about 85 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCHF.sub.2 present in between about 85 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCHF.sub.2 present in between about 86 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 80 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 81 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 78 and 99 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 83 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 85 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 85 and 99 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CHF.sub.2 present in between about 86 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCHF.sub.2 present in between about 87 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCHF.sub.2 present in between about 87 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 79 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 81 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 81 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 86 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 87 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 86 and 99 wt %;

CHF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 89 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 84 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 85 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 71 and 99 wt %;

CF.sub.3 CHFCHF.sub.2 CHF.sub.2 present in between about 76 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHF.sub.2 present in between about 77 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 70 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 F present in between about 76 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 74 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 78 and 99 wt %;

CHF.sub.2 CHFCHFCHF.sub.2 present in between about 81 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 78 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 79 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 75 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 69 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.3 present in between about 64 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.3 present in between about 67 and 95 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCH.sub.2 F present in between about 89 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 87 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 86 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 87 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 87 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CH.sub.2 F present in between about 89 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 87 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 87 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 87 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 89 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 89 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 85 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 88 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 87 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 88 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 86 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 89 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.3 present in between about 80 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.3 present in between about 82 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 83 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 79 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 present in between about 83 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 84 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 82 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 85 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 82 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 88 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 89 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 89 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 89 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 91 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 91 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 90 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 89 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 85 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 88 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 89 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 89 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 87 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 90 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 90 and 99 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 88 and 99 wt %;

CHF.sub.2 CHFCHFCF.sub.2 CF.sub.2 CH.sub.2 present in between about 90 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 87 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.CF.sub.2 CHFCH.sub.3 present in between about 82 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 84 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 85 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 84 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 81 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 87 and 99 wt %;

CHF.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 88 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 83 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 85 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 84 and 99 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 CF.sub.3 present in between about 88 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 87 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 86 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 83 and 99 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHFCF.sub.3 present in between about 87 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 83 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CHF.sub.2 present in between about 87 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 88 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 86 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 89 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 87 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 87 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 88 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCHFCHF.sub.2 present in between about 88 and 99 wt %;

CF.sub.3 CHFCHFCHFCHFCHF.sub.2 present in between about 90 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 89 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 82 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 85 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 85 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 84 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCH.sub.2 F present in between about 87 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCH.sub.2 F present in between about 88 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 86 and 99 wt %;

CH.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 70 and 99 wt %;

CH.sub.3 CF.sub.2 CFHCF.sub.2 CF.sub.3 present in between about 73 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 74 and 99 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 74 and 99 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CF.sub.3 present in between about 79 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 present in between about 81 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 78 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCF.sub.3 present in between about 82 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 80 and 99 wt %;

CF.sub.2 HCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 79 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 81 and 99 wt %;

CF.sub.2 HCHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 80 and 99 wt %;

CF.sub.2 HCHFCHFCHFCF.sub.3 present in between about 84 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 82 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CFHCF.sub.3 present in between about 81 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 82 and 99 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 76 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.3 present in between about 80 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 78 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.3 present in between about 80 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 H present in between about 83 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 H present in between about 82 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 81 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 74 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 82 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 H present in between about 85 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 HFCF.sub.2 H present in between about 85 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 H present in between about 83 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 79 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 79 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CF.sub.3 present in between about 83 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 85 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 82 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 85 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 83 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 83 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 44 and 99 wt %;

CF.sub.3 CHFCHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 83 and 99 wt %;

CF.sub.3 CHFCHFCHFCHFCF.sub.3 present in between about 86 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 79 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 82 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 84 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 85 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 83 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 86 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 87 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 85 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCHF.sub.2 present in between about 88 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 86 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 84 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 85 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 85 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CHF.sub.2 present in between about 87 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 86 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 85 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 85 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 78 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 83 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 84 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 84 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 81 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 85 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 85 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 83 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 86 and 99 wt %;

HF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 83 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 77 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 79 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 79 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 87 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 88 and 99 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 88 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 86 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 88 and 99 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 85 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 84 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 86 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 86 and 99 wt %;

CHF.sub.2 CHFCFF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 85 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 82 and 99 wt %;

CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 78 and 99 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 56 and 99 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.3 present in between about 68 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.3 present in between about 70 and 99 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.3 present in between about 71 and 99 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.3 present in between about 69 and 99 wt %;

CF.sub.2 HCHFCHFCHFCF.sub.3 present in between about 74 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.3 present in between about 69 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 71 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 H present in between about 75 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 74 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 75 and 99 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 74 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.3 present in between about 78 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 76 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHF.sub.2 present in between about 79 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 76 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHF.sub.2 present in between about 79 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHF.sub.2 present in between about 78 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 73 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 73 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 75 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 76 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 64 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 79 and 99 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 80 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 76 and 99 wt %;

CH.sub.3 (CF.sub.2).sub.4 CF.sub.3 present in between about 70 and 99 wt %;

CH.sub.2 FCHF(CF.sub.2).sub.3 CF.sub.3 present in between about 77 and 99 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 F.sub.3 present in between about 79 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 80 and 99 wt %;

CH.sub.2 F(CH.sub.2).sub.3 CHFCF.sub.3 present in between about 80 and 99 wt %;

CF.sub.2 HCF.sub.2 (CF.sub.2).sub.3 CF.sub.3 present in between about 78 and 99 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 81 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 83 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 83 and 99 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 79 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 83 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 83 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 81 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCHFCF.sub.3 present in between about 83 and 99 wt %;

CF.sub.2 H(CF.sub.2).sub.3 CH.sub.2 CF.sub.3 present in between about 80 and 99 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 78 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 80 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 80 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCF.sub.3 present in between about 78 and 99 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 82 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCF.sub.3 present in between about 83 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 80 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHCFF.sub.2 CF.sub.3 present in between about 78 and 99 wt %;

CH.sub.2 F(CF.sub.2).sub.4 CF.sub.2 H present in between about 80 and 99 wt %;

CF.sub.2 HCHF(CF.sub.2).sub.3 CF.sub.2 H present in between about 83 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 84 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.3 present in between about 66 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 59 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHF.sub.2 present in between about 65 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHF.sub.2 present in between about 66 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 61 and 99 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 66 and 99 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 66 and 99 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 71 and 99 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 72 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 72 and 99 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 67 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.3 present in between about 71 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.3 present in between about 72 and 99 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 68 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 72 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 76 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 73 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 77 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 77 and 99 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 76 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 73 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 76 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 77 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 77 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 77 and 99 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 72 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 77 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 69 and 99 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 69 and 99 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 69 and 99 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.3 present in between about 54 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.3 present in between about 55 and 95 wt %;

CF.sub.2 HCF.sub.2 CF.sub.3 present in between about 46 and 85 wt %; and

CF.sub.3 CHFCF.sub.3 present in between about 47 and 85 wt %.

17. The mixture of claim 14 wherein each hydrofluorocarbon present in the mixture is independently selected from the group consisting of

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 77 and 92 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 81 and 93 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.3 present in between about 82 and 93 wt %;

CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 84 and 94 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.3 present in between about 84 and 94 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.3 present in between about 85 and 94 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 84 and 94 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 86 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 86 and 95 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 87 and 95 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 88 and 95 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 88 and 95 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 F present in between about 89 and 96 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 85 and 94 wt %;

CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 87 and 95 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 87 and 95 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHF.sub.2 present in between about 88 and 95 wt %;

CF.sub.3 CHFCH.sub.2 CHFCHF.sub.2 present in between about 88 and 95 wt %;

CF.sub.3 CH.sub.2 CHFCHFCHF.sub.2 present in between about 89 and 96 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 85 and 94 wt %;

CF.sub.3 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 86 and 95 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 83 and 94 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 87 and 95 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 88 and 95 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 88 and 95 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CHF.sub.2 present in between about 89 and 96 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCHF.sub.2 present in between about 90 and 96 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCHF.sub.2 present in between about 90 and 96 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 84 and 94 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 85 and 94 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 86 and 95 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 89 and 96 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 90 and 96 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 90 and 96 wt %;

CHF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 91 and 96 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 88 and 95 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 88 and 95 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 78 and 92 wt %;

CF.sub.3 CHFCHF.sub.2 CHF.sub.2 present in between about 82 and 93 wt %;

CF.sub.3 CH.sub.2 CHFCHF.sub.2 present in between about 82 and 93 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 77 and 92 wt %;

CF.sub.3 CHFCHFCH.sub.2 F present in between about 82 and 93 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 80 and 93 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 83 and 94 wt %;

CHF.sub.2 CHFCHFCHF.sub.2 present in between about 86 and 95 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 83 and 94 wt %;

CHF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 84 and 94 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 81 and 93 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 77 and 92 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.3 present in between about 73 and 90 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.3 present in between about 75 and 91 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCH.sub.2 F present in between about 91 and 96 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 90 and 96 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CH.sub.2 F present in between about 89 and 96 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 90 and 96 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 90 and 96 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CH.sub.2 F present in between about 92 and 97 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CFHCF.sub.2 CH.sub.2 F present in between about 90 and 96 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 90 and 96 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 90 and 96 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 91 and 96 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 92 and 97 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 89 and 96 wt %;

CF.sub.3 CHFCHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 91 and 96 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 90 and 96 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 91 and 96 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 89 and 96 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 91 and 96 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.3 present in between about 81 and 93 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.3 present in between about 85 and 94 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.3 present in between about 86 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 87 and 95 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.3 present in between about 84 and 94 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.3 present in between about 87 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 88 and 95 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 86 and 95 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 88 and 95 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 86 and 95 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 91 and 96 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 92 and 97 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 92 and 97 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 91 and 96 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 93 and 97 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 93 and 97 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 92 and 97 wt %;

CHF.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 92 and 97 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 89 and 96 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 91 and 96 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 92 and 97 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 92 and 97 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 90 and 96 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 92 and 97 wt %;

CHF.sub.2 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 92 and 97 wt %;

CHF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 91 and 96 wt %;

CHF.sub.2 CHFCHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 92 and 97 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 90 and 96 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 87 and 95 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 88 and 95 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 89 and 96 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 88 and 95 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 86 and 95 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 90 and 96 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 91 and 96 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 87 and 95 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CHFCF.sub.2 present in between about 89 and 96 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 88 and 95 wt %;

CF.sub.3 CHFCHFCHFCH.sub.2 CF.sub.3 present in between about 91 and 96 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 90 and 96 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 89 and 96 wt %;

CF.sub.3 CHFCH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 87 and 95 wt %;

CF.sub.3 CHFCHFCH.sub.2 CHFCF.sub.3 present in between about 90 and 96 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CHF.sub.2 present in between about 87 and 95 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CHF.sub.2 present in between about 90 and 96 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 91 and 96 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 89 and 96 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 91 and 96 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 90 and 96 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CHFCHF.sub.2 present in between about 90 and 96 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 91 and 96 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCHFCHF.sub.2 present in between about 91 and 96 wt %;

CF.sub.3 CHFCHFCHFCHFCHF.sub.2 present in between about 93 and 97 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 92 and 97 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CH.sub.2 F present in between about 87 and 95 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CH.sub.2 F present in between about 88 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 89 and 96 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCH.sub.2 F present in between about 87 and 95 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCH.sub.2 F present in between about 90 and 96 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCH.sub.2 F present in between about 91 and 96 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 90 and 96 wt %;

CH.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 77 and 92 wt %;

CH.sub.3 CF.sub.2 CFHCF.sub.2 CF.sub.3 present in between about 79 and 92 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 80 and 93 wt %;

CH.sub.2 FCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 80 and 93 wt %;

CH.sub.2 FCHFCHFCF.sub.2 CF.sub.3 present in between about 84 and 94 wt %;

CH.sub.2 FCHFCF.sub.2 CHFCF.sub.3 present in between about 85 and 94 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 83 and 94 wt %;

CH.sub.2 FCF.sub.2 CHFCHFCF.sub.3 present in between about 86 and 95 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 84 and 94 wt %;

CF.sub.2 HCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 84 and 94 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 85 and 94 wt %;

CF.sub.2 HCHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 85 and 94 wt %;

CF.sub.2 HCHFCHFCHFCF.sub.3 present in between about 88 and 95 wt %;

CF.sub.2 HCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 86 and 95 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CFHCF.sub.3 present in between about 86 and 95 wt %;

CF.sub.2 HCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 86 and 95 wt %;

CF.sub.3 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 81 and 93 wt %;

CF.sub.3 CH.sub.2 CHFCHFCF.sub.3 present in between about 85 and 94 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 83 and 84 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.3 present in between about 84 and 94 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 H present in between about 87 and 95 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 H present in between about 87 and 95 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 86 and 95 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 80 and 93 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 86 and 95 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 H present in between about 88 and 95 wt %;

CF.sub.2 HCHFCF.sub.2 HFCF.sub.2 H present in between about 89 and 96 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 H present in between about 87 and 95 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 84 and 94 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.3 present in between about 84 and 94 wt %;

CF.sub.3 CF.sub.2 CHFCHFCH.sub.2 CF.sub.3 present in between about 87 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 88 and 95 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 86 and 95 wt %;

CF.sub.3 CHFCHFCF.sub.2 CH.sub.2 CF.sub.3 present in between about 89 and 96 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 87 and 95 wt %;

CF.sub.3 CHFCH.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 87 and 95 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 58 and 85 wt %;

CF.sub.3 CHFCHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 87 and 95 wt %;

CF.sub.3 CHFCHFCHFCHFCF.sub.3 present in between about 90 and 96 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 84 and 94 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 CHF.sub.2 present in between about 86 and 95 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 CHF.sub.2 present in between about 88 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 88 and 95 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCHF.sub.2 present in between about 87 and 95 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHFCHF.sub.2 present in between about 89 and 96 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCHF.sub.2 present in between about 90 and 96 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 89 and 96 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHFCHF.sub.2 present in between about 90 and 96 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 89 and 96 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.2 CHF.sub.2 present in between about 88 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 89 and 96 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 88 and 95 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CHF.sub.2 present in between about 90 and 96 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 89 and 96 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 88 and 95 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 88 and 95 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 F present in between about 83 and 94 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCHFCH.sub.2 F present in between about 87 and 95 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCH.sub.2 F present in between about 88 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 88 and 95 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 F present in between about 86 and 95 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CH.sub.2 F present in between about 88 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 89 and 96 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 87 and 95 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 89 and 96 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 87 and 95 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.3 present in between about 81 and 93 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.3 present in between about 83 and 94 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.3 present in between about 84 and 94 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 84 and 94 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHFCHF.sub.2 present in between about 90 and 96 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHFCHF.sub.2 present in between about 91 and 96 wt %;

CHF.sub.2 CHFCF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 91 and 96 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 89 and 96 wt %;

CHF.sub.2 CF.sub.2 CHFCHFCF.sub.2 CHF.sub.2 present in between about 91 and 96 wt %;

CHF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 88 and 95 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 88 and 95 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 89 and 96 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 89 and 96 wt %;

CHF.sub.2 CHFCFF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 89 and 96 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 87 and 95 wt %;

CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 84 and 94 wt %;

CH.sub.3 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 67 and 88 wt %;

CH.sub.2 FCHFCF.sub.2 CF.sub.3 present in between about 76 and 91 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.3 present in between about 77 and 92 wt %;

CH.sub.2 FCF.sub.2 CH.sub.2 CF.sub.3 present in between about 78 and 92 wt %;

CF.sub.2 HCH.sub.2 CF.sub.2 CF.sub.3 present in between about 76 and 91 wt %;

CF.sub.2 HCHFCHFCF.sub.3 present in between about 80 and 93 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.3 present in between about 77 and 92 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 78 and 92 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 H present in between about 81 and 93 wt %;

CF.sub.3 CF.sub.2 CHFCH.sub.2 CF.sub.3 present in between about 80 and 93 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 81 and 93 wt %;

CF.sub.3 CHFCH.sub.2 CF.sub.2 CF.sub.3 present in between about 81 and 93 wt %;

CF.sub.3 CHFCHFCHFCF.sub.3 present in between about 83 and 94 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 82 and 93 wt %;

CF.sub.3 CHFCHFCF.sub.2 CHF.sub.2 present in between about 84 and 94 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CHF.sub.2 present in between about 82 and 93 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHF.sub.2 present in between about 84 and 94 wt %;

CF.sub.3 CF.sub.2 CHFCHFCHF.sub.2 present in between about 83 and 94 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 80 and 93 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCH.sub.2 F present in between about 79 and 92 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CH.sub.2 F present in between about 81 and 93 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 F present in between about 82 and 93 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.3 present in between about 73 and 90 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 84 and 94 wt %;

CHF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 85 and 94 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 81 and 93 wt %;

CH.sub.3 (CF.sub.2).sub.4 CF.sub.3 present in between about 77 and 92 wt %;

CH.sub.2 FCHF(CF.sub.2).sub.3 CF.sub.3 present in between about 83 and 94 wt %;

CH.sub.2 FCF.sub.2 CHFCF.sub.2 CF.sub.2 F.sub.3 present in between about 84 and 94 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 85 and 94 wt %;

CH.sub.2 F(CF.sub.2).sub.3 CHFCF.sub.3 present in between about 85 and 94 wt %;

CF.sub.2 HCF.sub.2 (CF.sub.2).sub.3 CF.sub.3 present in between about 83 and 94 wt %;

CF.sub.2 HCHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 86 and 95 wt %;

CF.sub.2 HCHFCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 87 and 95 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 87 and 95 wt %;

CF.sub.2 HCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 84 and 94 wt %;

CF.sub.2 HCF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 87 and 95 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 87 and 95 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 85 and 94 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCHFCF.sub.3 present in between about 87 and 95 wt %;

CF.sub.2 H(CF.sub.2).sub.3 CH.sub.2 CF.sub.3 present in between about 85 and 94 wt %;

CF.sub.3 CH.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 83 and 94 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 84 and 94 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 85 and 94 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CHFCF.sub.3 present in between about 83 and 94 wt %;

CF.sub.3 CHFCHFCHFCF.sub.2 CF.sub.3 present in between about 86 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CHFCHFCF.sub.3 present in between about 87 and 95 wt %;

CF.sub.3 CHFCF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 84 and 94 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHCFF.sub.2 CF.sub.3 present in between about 83 and 94 wt %;

CH.sub.2 F(CF.sub.2).sub.4 CF.sub.2 H present in between about 85 and 94 wt %;

CF.sub.2 HCHF(CF.sub.2).sub.3 CF.sub.2 H present in between about 87 and 95 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.2 H present in between about 87 and 95 wt %;

CF.sub.3 CHFCHFCF.sub.3 present in between about 74 and 91 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 69 and 89 wt %;

CF.sub.3 CF.sub.2 CHFCHF.sub.2 present in between about 74 and 91 wt %;

CF.sub.3 CHFCF.sub.2 CHF.sub.2 present in between about 74 and 91 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CHF.sub.2 present in between about 70 and 89 wt %;

CHF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 75 and 91 wt %;

CH.sub.2 FCF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 74 and 91 wt %;

CF.sub.2 HCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 78 and 92 wt %;

CF.sub.2 HCF.sub.2 CHFCF.sub.2 CF.sub.3 present in between about 79 and 92 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 79 and 92 wt %;

CF.sub.3 CH.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 75 and 91 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.3 present in between about 78 and 92 wt %;

CF.sub.3 CHFCF.sub.2 CHFCF.sub.3 present in between about 79 and 92 wt %;

CF.sub.3 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 76 and 91 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 H present in between about 79 and 92 wt %;

CF.sub.3 CF.sub.2 CHFCHFCF.sub.2 CF.sub.3 present in between about 82 and 93 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.2 CF.sub.3 present in between about 79 and 92 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CHFCF.sub.3 present in between about 83 and 94 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CHFCF.sub.3 present in between about 82 and 93 wt %;

CF.sub.3 CHFCHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 82 and 93 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 CF.sub.3 present in between about 79 and 92 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CHFCHF.sub.2 present in between about 82 and 93 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CHFCF.sub.2 CHF.sub.2 present in between about 82 and 93 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CHF.sub.2 present in between about 83 and 94 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 83 and 94 wt %;

CF.sub.3 CF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CH.sub.2 F present in between about 79 and 92 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.2 CHF.sub.2 present in between about 83 and 94 wt %;

CF.sub.2 HCFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 76 and 91 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.2 CF.sub.2 CF.sub.3 present in between about 77 and 92 wt %;

CF.sub.3 CF.sub.2 CHFCF.sub.2 CF.sub.2 CF.sub.3 present in between about 77 and 92 wt %;

CF.sub.2 HCF.sub.2 CF.sub.2 CF.sub.3 present in between about 65 and 85 wt %;

CF.sub.3 CHFCF.sub.2 CF.sub.3 present in between about 65 and 85 wt %;

CF.sub.2 HCF.sub.2 CF.sub.3 present in between about 56 and 75 wt %;

CF.sub.3 CHFCF.sub.3 present in between about 56 and 75 wt %.

18. The mixture of claim 1 wherein the pentafluoropropane is selected from 1,1,2,2,3-pentafluoropropane; 1,1,2,3,3-pentafluoropropane; 1,1,1,2,3-pentafluoropropane; 1,1,1,3,3-pentafluoropropane; or mixtures thereof.

19. The mixture of claim 18 wherein the pentafluoropropane is selected from 1,1,2,2,3-pentafluoropropane or 1,1,1,3,3-pentafluoropropane.

20. The mixture of claim 18 wherein the pentafluoropropane is 1,1,1,3,3-pentafluoropropane.

21. A process to cool a region or object, which comprises:

(A) condensing a refrigerant mixture of claim 1 to produce a liquid in a first region followed by dissipation of the heat generated;

(B) transferring the condensed refrigerant mixture of step (A) to a second region or object to be cooled;

(C) evaporating the condensed refrigerant mixture in the second region or object, which results in cooling of the second region or object; and

(D) optionally transferring the evaporated refrigerant mixture to the first region of step (A) to be condensed and recycled.

22. A process to heat a region or object, which process comprises:

(A') condensing a refrigerant mixture of claim 1 in a first region or object to be heated;

(B') transferring the condensed refrigerant of step (A') to a second region;

(C') evaporating the condensed refrigerant mixture of step (B') and dissipating the heat produced; and

(D') optionally transferring the evaporated refrigerant mixture to step (C') to the first region or object of step (A') to be recondensed and recycled.

23. A process to produce a polyurethane foam or a polyisococyanurate foam, which process comprises:

(A) combining a mixture of compounds needed to produce a polyurethane with a sufficient quantity of the azeotrope-like mixture of claim 1 as blowing agent, under reaction conditions which produce a foamed polyurethane; or

(B) combining a mixture of compounds needed to produce a polyisocyanurate with a sufficient quantity of the azeotrope-like mixture of claim 1 as a blowing agent, under reaction conditions which produce a foamed polyisocyanurate.