Sulfur-free propellant compositions

Information

  • Patent Application
  • 20040144457
  • Publication Number
    20040144457
  • Date Filed
    January 28, 2003
    21 years ago
  • Date Published
    July 29, 2004
    19 years ago
Abstract
Sulfur free propellant compositions for use as a blackpowder substitute in firearms, munitions, and pyrotechnics to form combustion byproducts that are water soluble and are free of corrosive sulfur compounds. Formulations include an ignition aid of a gluconic acid salt or an alkali metal nitrobenzoate salt or a mixture of the two salts in combination with various known oxidizing and reducing agents and with various known propellant additives. The oxidizing and reducing agents may be selected from the group consisting of carbon, lactose, potassium nitrate, potassium perchlorate, sodium benzoate, and mixtures thereof. The propellant additives may be selected from the group consisting of binders, burning rate modifiers, flow agents, colorants, coating agents, moisture retardants and mixtures thereof.
Description


[0001] This invention relates to propellants in firearms, munitions, pyrotechnics, and the like. More specifically, this invention relates to a blackpowder substitute which forms combustion byproducts that are easily cleaned with water and are free of corrosive sulfur compounds.


BACKGROUND OF THE INVENTION

[0002] Blackpowder was one of the first materials that could be used as a propellant, an explosive, and in pyrotechnic devices. The Chinese are credited with its development many centuries ago. As blackpowder characteristics became known, its uses expanded. It was first used in cannons and hand cannons in Europe in the 14th century. It began to be used in civil engineering projects in the 16th century and in coal mining operations during the 17th century. The forerunner of today's muzzleloading guns, the matchlock musket, was also invented in the 16th century. Following that matchlock, further developments in firearms made the use of blackpowder more effective and convenient. In rapid succession, better ignition systems were developed with both the wheellock and the flintlock during the 16th century. The percussion cap firearm, similar to that used today, was not developed until the 19th century.


[0003] Thus, for hundreds of years, blackpowder remained unchallenged as the only material of its type. Inventors directed their efforts to making better use of blackpowder. With the advent of nitro-cellulose smokeless powder in the latter part of the 19th century, blackpowder lost its preeminence as the only gun propellant. Smokeless powder burned cleaner and produced more energy than did blackpowder, and it was safer to use and handle. However, because of blackpowder's lower gun barrel pressures, ignition characteristics, and low cost of manufacture, blackpowder retained its place in the market as the only propellant for antique firearms such as muzzleloaders and the preferred material for use in fuse manufacture, ignition devices, cannon round igniters, fireworks, and the like.


[0004] In 1978, U.S. Pat. No. 4,128,443 was issued to Pawlak and Levenson for Deflagrating Propellant Compositions. Blackpowder was soon no longer the muzzleloading propellant of choice for many sportsmen. The principal product marketed as a result of the Pawlak et. al. patent is known as Pyrodex powder. This product does not detonate and is less prone to accidental ignition than is blackpowder. In addition to being used as a propellant in muzzleloading and cartridge guns, Pyrodex powder has been formulated as a delay powder, a fuse powder, a fireworks powder, and in some military applications. However, Pyrodex it not without its own drawbacks. It does not ignite satisfactorily in flintlock guns and, like blackpowder, it contains sulfur which results in combustion residues that are hard to remove and can cause corrosion if left in the gun barrel.


[0005] U.S. Pat. No. 4,497,676 issued in 1985 to Kurtz. It was the first in a number of patents on sulfur-free compositions utilizing potassium nitrate and ascorbic or erythorbic acid. Some of these patents used slurries in the manufacture thus requiring the subsequent removal of large quantities of water. Others required cooking or heating with the attendant high production cost and hazard. Many of these products had low energy content and were very hygroscopic with the result that the product coagulated in the container, becoming a single, unusable lump.


[0006] Cioffe further expanded on the use of ascorbic or erythorbic acid in U.S. Pat. No. 5,449,423 by adding potassium perchlorate. This product had reduced hygroscopicity and higher energy, however, it requires high energy inputs during manufacture for compaction and subsequent granulation. The resulting product has been known to detonate. Other similar products are known that have the same bad characteristics.


[0007] Several factors have combined to increase the market for a clean burning, high performance propellant composition. Deer population in many states has grown substantially due to good conservation management, and these states now have separate seasons for muzzleloading guns during a so-called primitive weapons season, as well as a regular season for conventional, high powered firearms. The same is true in many western states having elk herds. Due to the growing popularity of muzzleloaders, gun manufacturers have developed the “in line” rifle which gives better ignition than the side-hammer percussion rifle, and these weapons are made to withstand higher gun barrel pressures. When Pyrodex powder was first introduced, the most popular projectile was the patched round ball. Today, modern projectiles using plastic sabots with a metal jacketed bullet are gaining ascendance and higher velocities are desirable.


[0008] The demand is growing for propellant compositions that will keep pace with expanding market of shooters and sportsmen having an interest in muzzleloading type weaponry. At the same time, the need remains for propellant compositions which solve the many disadvantages and drawbacks of corrosiveness and cleaning difficulty associated with blackpowder and conventional blackpowder substitutes such as Pyrodex powder. The primary objective of this invention is to meet these needs.



SUMMARY OF THE INVENTION

[0009] More specifically, an object of the invention is to provide a propellant composition as a sulfur free deflagrating gas generating formulation to eliminate the presence of corrosive, sulfur-containing byproducts of combustion.


[0010] A corollary object of the invention is to provide a propellant composition as a sulfur free substitute for conventional blackpowder and which may be loaded in firearms on a volumetric basis similar to the way that blackpowder is loaded, rather than on a weight basis.


[0011] Another object of the invention is to provide a propellant composition for which the combustion byproducts may be readily removed with water to provide easy cleanup of weaponry in which such propellant composition is utilized.


[0012] Another object of the invention is to provide a propellant composition of the character described which forms water soluble combustion products free of sulfur-containing compounds.


[0013] An additional object of the invention is to provide a propellant composition of the character described with limited water formation in the combustion products to facilitate repeated use and ignition of subsequent charges in firearms.


[0014] A further object of the invention is to provide a propellant composition of the character described having reliable and consistent performance characteristics of good ignition, no detonation, good burn rate, low hygroscopic properties, reasonable time to peak pressure, adequate fouler pressure, moderate peak pressure, and reproducible velocity performance and ballistics.


[0015] Yet another object of the invention is to provide a propellant composition of the character described which can be manufactured from readily available chemicals, can be safely handled and stored, has an adequate shelf life, and can be manufactured in a modern gunpowder plant within industry standards for safety, handling, manufacture and storage.


[0016] In summary, an object of the invention is to provide sulfur free propellant compositions for use as a blackpowder substitute in firearms, munitions, and pyrotechnics which form combustion byproducts that are water soluble and are free of corrosive sulfur compounds. Formulations include an ignition aid of a gluconic acid salt or an alkali metal nitrobenzoate salt or a mixture of the two salts in combination with various known oxidizing and reducing agents and with various known propellant additives. The oxidizing and reducing agents may be selected from the group consisting of carbon, lactose, potassium nitrate, potassium perchlorate, sodium benzoate, and mixtures thereof. The propellant additives may be selected from the group consisting of binders, burning rate modifiers, flow agents, colorants, coating agents, moisture retardants and mixtures thereof.


[0017] Other and further objects of the invention, together with the features of novelty appurtenant thereto, will appear in the following detailed description of the invention.







DETAILED DESCRIPTION OF THE INVENTION

[0018] The important benefits of sulfur in various pyrotechnic mixtures such as blackpowder and modern blackpowder substitutes, such as Pyrodex powder as taught in U.S. Pat. No. 4,128,443 incorporated herein by reference, have long been known. However, the significant drawbacks and disadvantages of sulfur in pyrotechnic mixtures for firearms have also long been understood. The presence of sulfur in these prior art mixtures results in sulfur compounds being present in the combustion residue. In the case of blackpowder, such compounds include hydrogen sulfide, potassium sulfate, potassium thiosulfate, and potassium sulfide. In the case of Pyrodex powder, the sulfur-containing byproducts include principally potassium sulfate and potassium thiosulfate. Such sulfur compounds are difficult to remove from gun barrels where repeated use of the firearms without intermediate cleaning is frequently practiced. Without cleaning, such sulfur compounds combine with moisture and are highly corrosive to the metal parts of the firearm.


[0019] In both blackpowder and Pyrodex, sulfur is a necessary component. The low melting point of sulfur (i.e., 244° F.) contributes to a lower autoignition temperature and promotes a faster burning rate in propellant mixtures. In the traditional formulation of blackpowder, charcoal represents 15% by weight, potassium nitrate represents 75% by weight and sulfur represents 10% by weight. The autoignition temperature of blackpowder is approximately 580° F. and the burn rate is about 2.3 seconds per inch at atmospheric pressure.


[0020] If sulfur is simply removed from blackpowder, in an effort to control production of the corrosive sulfur byproducts, the product is changed dramatically. The autoignition temperature rises from. 580 to 750 or higher, the burn rate slows down form 2.3 seconds/inch to more than 4.1 seconds/inch, and the ignition properties become very poor. In other words, the modified blackpowder becomes ineffective for use as a propellant composition.


[0021] Although the numbers themselves change, the same relationship holds true for Pyrodex powder. When sulfur is removed from Pyrodex powder, the autoignition temperature rises, the burn rate slows down, and the ignition is poor. Therefore, it has heretofore not been possible to simply eliminate sulfur from Pyrodex powder and still maintain a propellant composition useful in muzzleloading weapons.


[0022] We have discovered that sulfur can be eliminated and still maintain a propellant by using a gluconic acid salt or an alkali metal nitrobenzoate salt as an ignition aid to various mixtures of oxidizing and reducing agents known to those skilled in the art. It is also possible to combine these novel formulations with various propellant additives known to those skilled in the gunpowder arts, such as binders, burning rate modifiers, flow agents, colorants, coating agents, moisture retardants and mixtures thereof.


[0023] The gluconic acid salts tested in formulations coming within the scope of this invention include sodium gluconate and potassium gluconate. Sodium gluconate has a chemical formula of C6H11NaO7, a molecular weight of 218.13 and the recognized properties as indicated as reference #8372 of The Merck Index (9th Edition), incorporated herein by reference. The form most commonly used and readily available is sodium D-gluconate. Potassium gluconate has a chemical formula of C6H11KO7, a molecular weight of 234.24 and the recognized properties as indicated as reference #7413 of The Merck Index (9th Edition).


[0024] Within the broad working range of concentrations tested for use as an ignition aid, the gluconic acid salt may be present in the amount of 0 to 45% by weight, is preferably present in the amount of 1 to 25% by weight, and is present in the amount of 2 to 15% by weight in the most likely commercial product applications.


[0025] The alkali metal nitrobenzoate salt tested in formulations within the scope of this invention include sodium meta-nitrobenzoate, or sodium 3-nitrobenzoate. The compound has a chemical formula of C7H4NO4Na, a molecular weight of 189.11 and the recognized properties as indicated as reference #6411 of The Merck Index (9th Edition).


[0026] Within the broad working range of concentrations tested for use as an ignition aid, the sodium meta-nitrobenzoate may be present in the amount of 0 to 40% by weight, is preferably present in the amount of 1 to 15% by weight, and is present in the amount of 2 to 12% by weight in the most likely commercial product applications.


[0027] The oxidizing and reducing or fuel agents useful in the formulations of this invention include carbon, sugars, nitrate salts, perchlorate salts, benzoate salts, and mixtures thereof. Oxidizing and reducing agents specifically tested include carbon, lactose, potassium nitrate, potassium perchlorate, sodium benzoate, and mixtures thereof.


[0028] The element carbon has a chemical formula of C, a molecular weight of 12.01 and the recognized properties as indicated as reference #1814 of The Merck Index (9th Edition). The form most commonly used and readily available for use in this invention is charcoal. More specifically, the charcoal was air float charcoal derived from wood.


[0029] Within the broad working range of concentrations tested for use as a fuel in the propellant formulations, carbon may be present in the amount of 0 to 15% by weight, is preferably present in the amount of 1 to 12% by weight, and is present in the amount of 3 to 7% by weight in the most likely commercial product applications.


[0030] Numerous sugars have served as fuels for prior art compositions of propellants. Lactose has specifically been tested and found useful as a fuel in the formulations of this invention. However, other known sugars, such as dextrose, sucrose and fuels derived therefrom, are expected to be useful when combined with ignition agents of gluconate or sodium nitrobenzoate salts, or mixtures thereof. Lactose has a chemical formula of C12H22O11, a molecular weight of 360.31 and the recognized properties as indicated as reference #5192 of The Merck Index (9th Edition).


[0031] Within the broad working range of concentrations tested for use as a fuel in the propellant formulations, lactose may be optionally present in the amount of 0 to 15% by weight, is preferably present in the amount of 0 to 12% by weight, and may be optionally present in the amount of 0 to 10% by weight in the most likely commercial product applications.


[0032] Nitrate salts have served as oxidizing agents in prior art propellants. Potassium nitrate, known commonly as saltpeter, has been extensively tested and found useful as an oxidizing agent in the formulations of this invention. Potassium nitrate has a chemical formula of KNO3, a molecular weight of 101.10 and the recognized properties as indicated as reference #7432 of The Merck Index (9th Edition).


[0033] Within the broad working range of concentrations tested for use as an oxidizing agent in the propellant formulations, potassium nitrate may be present in the amount of 0 to 60% by weight, is preferably present in the amount of 20 to 50% by weight, and may be present in the amount of 30 to 45% by weight in the most likely commercial product applications.


[0034] Since the development of Pyrodex powder as a blackpowder substitute, perchlorate salts have also served as oxidizing agents in prior art propellants. Potassium perchlorate has been extensively tested and found useful as an oxidizing agent in the formulations of this invention. Potassium perchlorate has a chemical formula of KClO4, a molecular weight of 138.55 and the recognized properties as indicated as reference #7439 of The Merck Index (9th Edition).


[0035] Within the broad working range of concentrations tested for use as an oxidizing agent in the propellant formulations, potassium perchlorate may be present in the amount of 0 to 70% by weight, is preferably present in the amount of 15 to 50% by weight, and may be present in the amount of 20 to 40% by weight in the most likely commercial product applications.


[0036] The benzoate salts sodium benzoate and potassium benzoate have been tested and found useful in the formulations of this invention. Sodium benzoate has a chemical formula of C7H5NaO2, a molecular weight of 144.11 and the recognized properties as indicated as reference #8326 of The Merck Index (9th Edition). Potassium benzoate has a chemical formula of C7H5KO2, a molecular weight of 160.22 and the recognized properties as indicated as reference #1100 of The Merck Index (9th Edition).


[0037] Within the broad working range of concentrations tested for use in the propellant formulations, benzoate salt may be present in the amount of 0 to 30% by weight, is preferably present in the amount of 2 to 20% by weight, and may be present in the amount of 3 to 10% by weight in the most likely commercial product applications.


[0038] A broad range of various formulations of oxidizing and reducing agents with the ignitions agents of gluconic acid salts, or an alkali metal nitrobenzoate salt such as sodium nitrobenzoate or potassium nitrobenzoate, or mixtures thereof have been combined, without product degradation, with a variety of known propellant additives. Such additives include binders, burning rate modifiers, flow agents, colorants, coating agents, moisture retardants and mixtures thereof.


[0039] Propellant binders may comprise simply water, but dextrin is an agent known to serve as an effective binder in gunpowders. Dextrin has a chemical formula of C6H10O5, a molecular weight of 162.14 and the recognized properties as indicated as reference #2909 of The Merck Index (9th Edition).


[0040] Within the broad working range of concentrations tested for use as a binder in the propellant formulations, dextrin may be present in the amount of 0 to 10% by weight, is preferably present in the amount of 1 to 9% by weight, and may be present in the amount of 2 to 8% by weight in the most likely commercial product applications.


[0041] Likewise, water may also serve as a burning rate modifier. Dicyanodiamide is another agent known to modify burn rate in gunpowders. Dicyanodiamide has a chemical formula of C2H4N4, a molecular weight of 84.08 and the recognized properties as indicated as reference #3068 of The Merck Index (9th Edition).


[0042] Within the broad working range of concentrations tested for use as burn rate modifier in the propellant formulations, dicyanodiamide may be present in the amount of 0 to 10% by weight, is preferably present in the amount of 1 to 8% by weight, and may be present in the amount of 2 to 7% by weight in the most likely commercial product applications.


[0043] Tricalcium phosphate may serve as a flow agent in the propellant formulations. Tricalcium phosphate has a chemical formula of Ca3(PO4)2, a molecular weight of 310.20 and the recognized properties as indicated as reference #1695 of The Merck Index (9th Edition).


[0044] Within the broad working range of concentrations tested for use as a flow agent in the propellant formulations, tricalcium phosphate may be present in the amount of 0 to 1% by weight, is preferably present in the amount of 0.1 to 0.9% by weight, and may be present in the amount of 0.2 to 0.8% by weight in the most likely commercial product applications.


[0045] A small amount of carbon black may serve as a colorant in the propellant formulations. Blackpowder traditionalists and muzzleloading enthusiasts expect substitute powders to have a pleasing black color. Accordingly, an appropriate color shade may be achieved by adding up 0.5% by weight carbon black to the propellant formulations of this invention.


[0046] Likewise, coating agents such as graphite may be added to the propellant formulations of this invention. This may be done to improve the pouring and consistency of the product to better match the esthetics of traditional blackpowder characteristics.


[0047] Although the propellant formulations of this invention have not been found to be excessively hygroscopic, moisture retardants may be included in the product. Acceptable moisture retardants include silicon compounds known in the art for their moisture trapping and retaining properties.


[0048] Since the gluconic acid salts and alkali metal nitrobenzoate salt disclosed for use in this invention have not been previously known to have any use in pyrotechnic compositions, extensive tests have been conducted to attempt to understand the nature and scope of these compounds in various propellant formulations. A large number of the tested formulations are included in this application in Tables 1 through 3.


[0049] In the reported formulations of Tables 1 through 3, the raw materials of each formulation are given as a weight percentage. The combustion products are theoretically calculated and are likewise given as weight percentage.


[0050] In order to characterize the research compositions, the byproducts of the combustion reaction were calculated by a mass balance and a uniform method of determining the reaction byproducts. It is of course recognized that the uniform method does not necessarily yield correct absolute values due to the changes in byproducts that can occur from the reaction environment of high temperature and pressure to atmospheric conditions. Nonetheless, such method does give a good basis for relative comparison of one formulation with another.


[0051] The uniform method selected to calculate the reaction byproducts involves certain assumptions as follows. Materials that have very high melting points and are basically inert are considered to pass through the reaction unchanged. The inert portion of trace materials such as in charcoal are assumed to pass through the reaction unchanged. All hydrogen in the raw materials is assumed to be converted to water. All nitrogen in the raw materials is produced as nitrogen gas. All sodium in the raw materials is first produced as sodium chloride and secondly as sodium carbonate. All chlorine in the raw materials is first produced as sodium chloride and secondly as potassium chloride. Any remaining potassium after the above conversions is produced as potassium carbonate. Any remaining carbon is converted to carbon monoxide. Any remaining oxygen is used to convert carbon monoxide to carbon dioxide.


[0052] The composition of combustion products given in Tables 1 through 3, therefore, were determined in accordance with the foregoing method with the exception of the combustion products for blackpowder which are well known to those skilled in the gunpowder art to have the accepted values as listed.


[0053] As reported under performance characteristics in each of Tables 1 through 3, various test procedures or observations were made for each propellant formulation. A brief description of the test procedure or observation of the reported results are given as follows.


[0054] Autoignition Temperature is given in degrees Fahrenheit. Grains of the composition were placed on a hot plate at various locations until a location was found that caused combustion. The temperature of that location on the plate was then measured and recorded.


[0055] In the Open Tube Burn test, a small quantity of the composition was placed in a ½″ diameter plastic tube which was taped at one end. A fuse was placed in the open end and ignited. The nature of combustion of the composition was observed and the results recorded.


[0056] Burn Rate is given in seconds per inch. A quantity of the composition was compressed in a ½″ diameter tube at consistent pressure by increments until a pressing of about 1½″ in length was obtained. The pressed composition was then ignited and the time of burning was measured. The walls of the tube restricted the burning to just the cross-sectional area of the tube so that the composition burned in a cigarette type manner.


[0057] The Bulk Density is given in grams per cubic centimeter (gms/cc). A known volume of the composition was weighed, and the bulk density was calculated and recorded.


[0058] Moisture content is given as a weight percentage. Moisture content was measured using an Ohaus-type scale.


[0059] Ballistic characteristics were taken for 80 grains volumetric samples which means that the same volume was used that was equal to the volume of 80 grains by weight of blackpowder. The ballistic data was recorded.


[0060] The projectile velocities of multiple tests were measured and recorded as feet per second. For each shot, the test gun was charged with a known quantity of composition and the projectile was fired through velocity screens separated by a known distance. The time for the projectile to pass through one screen to the next was measured and the velocity was then calculated and recorded. Lo velocity represents the lowest velocity in the range of tests for the particular powder formulation being studied, Hi velocity represents the highest in the range of tests, ES velocity represents the spread between Lo and Hi velocities, Av velocity represents the average velocity, and SD velocity is the standard deviation for the range of tests.


[0061] The TTP test is given in milliseconds and represents the time to peak pressure. An electronic device was used to measure the elapsed time from the onset of pressure rise until the maximum pressure occurs in the gun barrel breech.


[0062] The Pressure test is given in pounds per square inch. A piezometer was used to determine the pressure in the breech of the gun at each firing of the composition and the maximum of such readings was recorded.


[0063] The Fouler pressure test is given in pounds per square inch. The Fouler pressure is measured with the piezometer as above, but this reading represents the first shot in a group of firings and was normally done with a clean barrel.


[0064] The ability to clean any combustion residue with water alone was also observed as part of the tests. With the exception of the tests on blackpowder recorded for comparative purposes, all of the formulations of this invention formed combustion byproducts which were easily removed with gun cleaning patches dipped in plain water.


[0065] In the following Table 1 representative examples are shown of propellant formulations in which a gluconic acid salt alone serves as the ignition aid for the oxidizing and reducing agents as indicated.
1TABLE 1Gluconate FormulationsChemicalMoleBlackRefRefRefFormulaWeightPowder#657#171#75RAW MATERIALS, wt. %Carbon BlackC12.010.450.50.5CharcoalC12.0115.003.153DextrinC6H10O5162.146.0066DicyanodiamideC2H4N484.08GraphiteC12.01LactoseC12H22O11360.316.1Sodium m-NitrobenzoateC7H4NO4Na189.11Potassium NitrateKNO3101.1075.0016.633853.1Potassium PerchlorateKClO4138.5548.8332.521.2Sodium BenzoateC7H5NaO2144.1121.009.814.8Potassium BenzoateC7H5KO2160.22Sodium GluconateC6H11NaO7218.133.553.74Potassium GluconateC6H11KO7234.24SulfurS32.0610.00Tricalcium PhosphateCa3(PO4)2310.200.400.40.4TOTAL100.00100.00100.0100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO396.110.97Carbon DioxideCO244.0124.9316.219Carbon MonoxideCO28.013.9738.2017.49.3Hydrogen SulfideH2S34.080.69MethaneCH416.040.49NitrogenN228.029.922.305.37.4Potassium CarbonateK2CO3138.2026.5622.4032.244.7Potassium ThiocyanateKCNS97.181.97Potassium SulfateK2SO4174.2512.34Potassium ThiosulfateK2S2O3190.3215.40Potassium SulfideK2S110.262.23Potassium ChlorideKCl74.5614.3010.92.3Sodium CarbonateNa2CO3105.99Sodium ChlorideNaCl58.459.405.17.1Tricalcium PhosphateCa3(PO4)2310.200.400.40.4WaterH2O18.0211.6011.69.8Ash or Unburned CarbonC12.010.531.400.9TOTAL100.00100.00100.0100PERFORMANCE FACTORSAutoignition Temp, ° F.580800760860Open tube burnjust burn fastjust burnjust burnBurn rate, secs/in.2.35.37.99.1Bulk Density10.840.870.81Moisture, wt. %<0.50.90.70.8Ballistics 80 gr. vol.Lo velocity, fps1624158617641393Hi velocity, fps1690only18631426ES velocity, fps66one9933Av velocity, fps1664shot18251407SD velocity, fps264815TTP, ms.0.80.211Pressure, psi max.110002950068003600Fouler pressure, psi41001600ChemicalRefRefRefRefRefFormula#85#165#175#663#664RAW MATERIALS, wt. %Carbon BlackC0.50.50.5CharcoalC3355DextrinC6H10O56444DicyanodiamideC2H4N4GraphiteCLactoseC12H22O116.875.57Sodium m-NitrobenzoateC7H4NO4NaPotassium NitrateKNO355.53737.837.837.8Potassium PerchlorateKClO422.231.532.232.232.2Sodium BenzoateC7H5NaO217.410.811119.5Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO7444.14.14.1Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100100.0100.0100.0100.0COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO225.510.213.712.913.5Carbon MonoxideCO2.223.9202120.2Hydrogen SulfideH2SMethaneCH4NitrogenN27.75.15.25.25.2Potassium CarbonateK2CO347.331.432.532.531.5Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl1.710.310.110.111.2Sodium CarbonateNa2CO3Sodium ChlorideNaCl8.15.35.65.64.8Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O7.112.511.610.711.6Ash or Unburned CarbonC0.90.91.61.6TOTAL100100.0100.0100.0100.0PERFORMANCE FACTORSAutoignition Temp, ° F.930740770770740Open tube burnjust burn fastburn fastburn fastBurn rate, secs/in.7.16.96.77.27.8Bulk Density0.640.840.810.840.84Moisture, wt. %0.70.70.70.80.8Ballistics 80 gr. vol.Lo velocity, fps15451864193719301839Hi velocity, fps15921941197619601884ES velocity, fps13877393045Av velocity, fps15371923195819461865SD velocity, fps7033171118TTP, ms.0.80.80.80.70.7Pressure, psi max.1110077008800104008900Fouler pressure, psi60005400800070006300ChemicalRefRefRefRefRefFormula#665#158#680#685#677RAW MATERIALS, wt. %Carbon BlackC0.5CharcoalC73777DextrinC6H10O5463.53.53DicyanodiamideC2H4N4GraphiteCLactoseC12H22O113.57.4444Sodium m-NitrobenzoateC7H4NO4NaPotassium NitrateKNO337.835.939.439.437.8Potassium PerchlorateKClO432.230.630.733.232.2Sodium BenzoateC7H5NaO21111.810.5811Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO74.14.44.54.54.6Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100.0100.0100.0100.0100.0COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO210.43.611.321.410.6Carbon MonoxideCO23.830.322.512.923.6Hydrogen SulfideH2SMethaneCH4NitrogenN25.255.55.55.2Potassium CarbonateK2CO332.531.633.23232.5Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl10.18.89.812.410.1Sodium CarbonateNa2CO3Sodium ChlorideNaCl5.65.95.44.35.6Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O9.813.49.88.99.8Ash or Unburned CarbonC2.20.92.22.22.2TOTAL100.099.9100.1100.0100.0PERFORMANCE FACTORSAutoignition Temp, ° F.770720720740720Open tube burnfastjust burnfastfastBurn rate, secs/in.6.37.36.78.16.6Bulk Density0.820.830.80.860.81Moisture, wt. %0.80.70.90.80.7Ballistics 80 gr. vol.Lo velocity, fps19391762190819051930Hi velocity, fps19551890199519662024ES velocity, fps16128876194Av velocity, fps19481845195119361980SD velocity, fps752262744TTP, ms.0.70.80.70.80.6Pressure, psi max.109007300126001100015400Fouler pressure, psi670046008500620011900ChemicalRefRefRefRefRefFormula#147#151#679#164#58RAW MATERIALS, wt. %Carbon BlackC0.50.50.5CharcoalC3375DextrinC6H10O566366DicyanodiamideC2H4N44.9GraphiteCLactoseC12H22O119.584.29.6Sodium m-NitrobenzoateC7H4NO4NaPotassium NitrateKNO337.934.839.434.248.6Potassium PerchlorateKClO426.529.730.732.919.4Sodium BenzoateC7H5NaO211.412.810.511.510.7Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO74.84.84.84.95Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100.0100.0100.0100.0100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO211.38.82.2Carbon MonoxideCO33.133.422.424.526.3Hydrogen SulfideH2SMethaneCH4NitrogenN25.34.85.54.710Potassium CarbonateK2CO332.931.333.430.439.8Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl6.77.89.410.13.4Sodium CarbonateNa2CO3Sodium ChlorideNaCl5.96.45.65.95.6Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O14.314.39.815.210.7Ash or Unburned CarbonC1.31.62.21.6TOTAL99.9100.0100.0100.0100PERFORMANCE FACTORSAutoignition Temp, ° F.740750710770840Open tube burnjust burnjust burnfastjust burnBurn rate, secs/in.8.38.56.39.58.8Bulk Density0.820.840.80.840.78Moisture, wt. %0.70.90.80.70.6Ballistics 80 gr. vol.Lo velocity, fps15711655191717131346Hi velocity, fps16161698197018111442ES velocity, fps4543539896Av velocity, fps15921676194217651384SD velocity, fps1919204439TTP, ms.110.60.81Pressure, psi max.430057001220063003800Fouler pressure, psi290046001000045002100ChemicalRefRefRefRefRefFormula#675#159#176#177#115RAW MATERIALS, wt. %Carbon BlackC0.50.50.50.5CharcoalC711DextrinC6H10O526646DicyanodiamideC2H4N4GraphiteCLactoseC12H22O114.510.48.99.111.1Sodium m-NitrobenzoateC7H4NO4NaPotassium NitrateKNO337.833.230.631.332.2Potassium PerchlorateKClO432.231.933.133.830.9Sodium BenzoateC7H5NaO21112.414.214.513.3Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO75.15.25.35.45.6Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100.0100.0100.0100.0100.0COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO2112.72.2Carbon MonoxideCO22.930.734.332.232.4Hydrogen SulfideH2SMethaneCH4NitrogenN25.24.64.24.34.5Potassium CarbonateK2CO332.93029.330.230.2Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl9.79.18.88.67.8Sodium CarbonateNa2CO3Sodium ChlorideNaCl5.96.47.17.46.9Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O9.816.115.214.317Ash or Unburned CarbonC2.20.60.30.9TOTAL100.0100.099.999.9100.1PERFORMANCE FACTORSAutoignition Temp, ° F.740740760760720Open tube burnfastjust burnjust burnjust burnjust burnBurn rate, secs/in.79.48.78.212Bulk Density0.80.830.850.830.81Moisture, wt. %0.80.80.70.70.9Ballistics 80 gr. vol.Lo velocity, fps18281776192019701675Hi velocity, fps19631845197320661729ES velocity, fps13569539654Av velocity, fps19221825194520191700SD velocity, fps5328203620TTP, ms.0.60.90.80.70.9Pressure, psi max.1300071009100118006100Fouler pressure, psi60009200145002300ChemicalRefRefRefRefRefFormula#673#117#676#674#660RAW MATERIALS, wt. %Carbon BlackC0.50.38CharcoalC7773.15DextrinC6H10O5626.00DicyanodiamideC2H4N4GraphiteCLactoseC12H22O115.59.67.18Sodium m-NitrobenzoateC7H4NO4NaPotassium NitrateKNO337.831.932.532.825.34Potassium PerchlorateKClO432.230.932.232.239.06Sodium BenzoateC7H5NaO21113.3111116.80Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO76.17.47.88.68.88Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.40TOTAL100.0100.0100.0100.0100.00COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO211.5Carbon MonoxideCO22.33234.834.436.00Hydrogen SulfideH2SMethaneCH4NitrogenN25.24.44.54.53.50Potassium CarbonateK2CO33330.630.130.728.10Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl9.57.28.98.49.30Sodium CarbonateNa2CO3Sodium ChlorideNaCl6.17.46.66.99.20Tricalcium PhosphateCa3(PO4)20.40.40.40.40.40WaterH2O9.81712.512.512.50Ash or Unburned CarbonC2.212.22.21.00TOTAL100.0100.0100.0100.0100.00PERFORMANCE FACTORSAutoignition Temp, ° F.720740740720800Open tube burnfastjust burnfastjust burnBurn rate, secs/in.6.612.26.66.86.4Bulk Density0.780.850.770.770.81Moisture, wt. %0.70.80.70.80.8Ballistics 80 gr. vol.Lo velocity, fps11521726184616541660Hi velocity, fps17271760195118521907ES velocity, fps57534105198fourAv velocity, fps1530174818961800shotsSD velocity, fps327143882TTP, ms.0.40.90.60.50.3Pressure, psi max.242005800135001840024100Fouler pressure, psi1410050001150013900ChemicalRefRefRefRefRefFormula#662#162#83#157#170RAW MATERIALS, wt. %Carbon BlackC0.380.50.50.50.5CharcoalC5.25333DextrinC6H10O56.00663DicyanodiamideC2H4N4GraphiteCLactoseC12H22O11Sodium m-NitrobenzoateC7H4NO4NaPotassium NitrateKNO332.5537.453.136.337.5Potassium PerchlorateKClO432.5530.821.229.930.9Sodium BenzoateC7H5NaO214.0012.414.813.614.1Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO78.889.51010.310.6Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.400.40.40.40.4TOTAL100.00100100100100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO29.322.539.6Carbon MonoxideCO35.0023.55.229.823Hydrogen SulfideH2SMethaneCH4NitrogenN24.505.27.455.2Potassium CarbonateK2CO331.6034.646.634.635.9Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl7.206.90.25.55.5Sodium CarbonateNa2CO3Sodium ChlorideNaCl8.107.68.78.48.7Tricalcium PhosphateCa3(PO4)20.400.40.40.40.4WaterH2O11.6011.68.912.510.7Ash or Unburned CarbonC1.600.90.90.9TOTAL100.0010099.9100.199.9PERFORMANCE FACTORSAutoignition Temp, ° F.730710780720740Open tube burnfastjust burnjust burnjust burnjust burnBurn rate, secs/in.7.16.98.36.96.9Bulk Density0.810.840.710.830.77Moisture, wt. %0.80.80.70.70.7Ballistics 80 gr. vol.Lo velocity, fps19231909156117991741Hi velocity, fps19531958169118881856ES velocity, fps304913089115Av velocity, fps19371931163818551817SD velocity, fps1119483447TTP, ms.0.70.710.90.5Pressure, psi max.12400740011900820016900Fouler pressure, psi1040052005800540013000ChemicalRefRefRefRefRefFormula#136#148#152#155#140RAW MATERIALS, wt. %Carbon BlackC0.50.50.50.50.5CharcoalC33333DextrinC6H10O566666DicyanodiamideC2H4N4GraphiteCLactoseC12H22O11Sodium m-NitrobenzoateC7H4NO4NaPotassium NitrateKNO327.137.231.235.228.2Potassium PerchlorateKClO436.227.232.62935Sodium BenzoateC7H5NaO215.614.515.114.715Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO711.211.211.211.211.9Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100100100100100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO2Carbon MonoxideCO34.331.132.931.934.3Hydrogen SulfideH2SMethaneCH4NitrogenN23.85.24.34.93.9Potassium CarbonateK2CO329.535.932.334.630Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl7.63.45.74.27.2Sodium CarbonateNa2CO3Sodium ChlorideNaCl9.48.99.28.99.2Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O13.413.413.413.413.4Ash or Unburned CarbonC1.61.81.71.71.5TOTAL100100.199.910099.9PERFORMANCE FACTORSAutoignition Temp, ° F.680730710730700Open tube burnburn fastjust burnburn fastjust burnburn fastBurn rate, secs/in.6.77.776.86.3Bulk Density0.830.810.830.840.84Moisture, wt. %0.80.90.70.80.8Ballistics 80 gr. vol.Lo velocity, fps19181762193117941983Hi velocity, fps21231795202618082010ES velocity, fps20533951427Av velocity, fps20301781199418001999SD velocity, fps861439510TTP, ms.0.60.90.70.70.7Pressure, psi max.17000630011800670015800Fouler pressure, psi15100430013000540014900ChemicalRefRefRefRefRefFormula#661#143#88#87#678RAW MATERIALS, wt. %Carbon BlackC0.330.50.50.5CharcoalC3.1535.70DextrinC6H10O56.00664DicyanodiamideC2H4N4GraphiteCLactoseC12H22O11Sodium m-NitrobenzoateC7H4NO4NaPotassium NitrateKNO331.1529.319.62034.00Potassium PerchlorateKClO432.5533.642.443.332.60Sodium BenzoateC7H5NaO214.0014.518.118.511.00Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO712.4312.71313.316.30Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.400.40.40.40.40TOTAL100.00100100100100.00COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO20.810.30Carbon MonoxideCO33.9034.234.934.923.40Hydrogen SulfideH2SMethaneCH4NitrogenN24.304.12.72.84.70Potassium CarbonateK2CO332.0030.926.326.533.70Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl6.106.38.89.56.10Sodium CarbonateNa2CO3Sodium ChlorideNaCl8.909.210.910.98.90Tricalcium PhosphateCa3(PO4)20.400.40.40.40.40WaterH2O13.4013.415.214.310.70Ash or Unburned CarbonC1.001.51.80TOTAL100.0010099.2100.1100.00PERFORMANCE FACTORSAutoignition Temp, ° F.750720700690670Open tube burnjust burnjust burnjust burn fastjust burn fastjust burnBurn rate, secs/in.8.36.86.76.57.6Bulk Density0.840.840.830.790.72Moisture, wt. %0.80.60.70.70.7Ballistics 80 gr. vol.Lo velocity, fps19081990154717531653Hi velocity, fps19332072195120251700ES velocity, fps258228927247Av velocity, fps19192020178618541673SD velocity, fps113112014818TTP, ms.0.70.70.30.30.5Pressure, psi max.1110012800236002120019100Fouler pressure, psi1020012000238001970019100ChemicalRefRefRefRefRefFormula#98#103#105#116#99RAW MATERIALS, wt. %Carbon BlackC0.50.50.50.50.5CharcoalCDextrinC6H10O566666DicyanodiamideC2H4N4GraphiteCLactoseC12H22O11Sodium m-NitrobenzoateC7H4NO4NaPotassium NitrateKNO325.12829.430.7Potassium PerchlorateKClO435.832.530.960.329.3Sodium BenzoateC7H5NaO215.41413.313.312.6Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO716.818.619.519.520.5Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100100100100100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO29.3Carbon MonoxideCO32.932.632.232.131Hydrogen SulfideH2SMethaneCH4NitrogenN23.53.94.14.3Potassium CarbonateK2CO329.731.832.912.733.6Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl5.73.82.918.72.1Sodium CarbonateNa2CO3Sodium ChlorideNaCl10.710.710.710.710.7Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O16.116.116.116.117Ash or Unburned CarbonC0.80.7TOTAL99100.110010099.1PERFORMANCE FACTORSAutoignition Temp, ° F.700660670740700Open tube burnjust burnjust burnjust burnburn fastjust burnBurn rate, secs/in.9.210.110.86.711Bulk Density0.840.850.840.880.83Moisture, wt. %0.80.80.70.80.8Ballistics 80 gr. vol.Lo velocity, fps199819091638only1475Hi velocity, fps204419421697one1603ES velocity, fps463359shot128Av velocity, fps20211922166721511537SD velocity, fps20152545TTP, ms.0.70.80.90.31Pressure, psi max.1300090006200349004900Fouler pressure, psi90004800349003400ChemicalRefRefRefFormula#89#580#670RAW MATERIALS, wt. %Carbon BlackC0.5CharcoalCDextrinC6H10O566.00DicyanodiamideC2H4N4GraphiteCLactoseC12H22O11Sodium m-NitrobenzoateC7H4NO4NaPotassium NitrateKNO336.355.50Potassium PerchlorateKClO422.862.00Sodium BenzoateC7H5NaO29.8Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO724.231.6044.10Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.400.40TOTAL100100.00100.00COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO233.8023.60Carbon MonoxideCO29.16.90Hydrogen SulfideH2SMethaneCH4NitrogenN257.70Potassium CarbonateK2CO336.29.9038.00Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl22.70Sodium CarbonateNa2CO30.710.70Sodium ChlorideNaCl9.68.40Tricalcium PhosphateCa3(PO4)20.40.400.40WaterH2O17.917.9019.60Ash or Unburned CarbonCTOTAL98.9100.00100.0PERFORMANCE FACTORSAutoignition Temp, ° F.660740620Open tube burnburn slowjust burnedslow burnBurn rate, secs/in.12.78.313Bulk Density0.790.80.63Moisture, wt. %0.60.80.1Ballistics 80 gr. vol.Lo velocity, fps11001647lowHi velocity, fps11401847ES velocity, fps40200Av velocity, fps11211783SD velocity, fps14080TTP, ms.1.10.7-1.3Pressure, psi max.16008300500Fouler pressure, psi9003600


[0066] In the following Table 2 representative examples are shown of propellant formulations in which the sodium nitrobenzoate salt sodium meta-nitrobenzoate alone serves as the ignition aid for the oxidizing and reducing agents as indicated.
2TABLE 2Sodium m-Nitrobenzoate FormulationsChemicalMoleBlackRefRefRefFormulaWeightPowder#795#791#792RAW MATERIALS, wt. %Carbon BlackC12.01CharcoalC12.0115.005.65.75.7DextrinC6H10O5162.1485.86.8DicyanodiamideC2H4N484.084.965GraphiteC12.01LactoseC12H22O11360.31Sodium m-NitrobenzoateC7H4NO4Na189.117.37.47.4Potassium NitrateKNO3101.1075.0038.739.239.2Potassium PerchlorateKClO4138.552929.429.4Sodium BenzoateC7H5NaO2144.116.16.16.1Potassium BenzoateC7H5KO2160.22Sodium GluconateC6H11NaO7218.13Potassium GluconateC6H11KO7234.24SulfurS32.0610.00Tricalcium PhosphateCa3(PO4)2310.200.40.40.4TOTAL100.00100100100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO396.110.97Carbon DioxideCO244.0124.937.19.19.3Carbon MonoxideCO28.013.9725.422.723Hydrogen SulfideH2S34.080.69MethaneCH416.040.49NitrogenN228.029.929.2109.3Potassium CarbonateK2CO3138.2026.563232.532.5Potassium ThiocyanateKCNS97.181.97Potassium SulfateK2SO4174.2512.34Potassium ThiosulfateK2S2O3190.3215.40Potassium SulfideK2S110.262.23Potassium ChlorideKCl74.569.59.79.7Sodium CarbonateNa2CO3105.990Sodium ChlorideNaCl58.454.84.84.8Tricalcium PhosphateCa3(PO4)2310.200.40.40.4WaterH2O18.029.99.19.3Ash or Unburned CarbonC12.010.531.71.71.7TOTAL100.00100100100PERFORMANCE FACTORSAutoignition Temp, ° F.580800840800Open tube burnjust burnBurn rate, secs/in.2.36.36.16.2Bulk Density10.760.750.72Moisture, wt. %<0.50.710.8Ballistics 80 gr. vol.Lo velocity, fps1624186917371739Hi velocity, fps1690194819771857ES velocity, fps6679240118Av velocity, fps1664191118811792SD velocity, fps26379959TTP, ms.0.80.60.60.5Pressure, psi max.11000113001580017000Fouler pressure, psi7500112009300ChemialRefRefRefRefFormula#783#694#825#824RAW MATERIALS, wt. %Carbon BlackCCharcoalC5.74DextrinC6H10O55.93.5DicyanodiamideC2H4N45GraphiteCLactoseC12H22O118.5Sodium m-NitrobenzoateC7H4NO4Na7.5830.0040.00Potassium NitrateKNO339.639.459.60Potassium PerchlorateKClO429.730.769.60Sodium BenzoateC7H5NaO26.25.5Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO7Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.400.40TOTAL100100.0100.00100.00COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO211.218.645.40Carbon MonoxideCO2115.728.00Hydrogen SulfideH2SMethaneCH4NitrogenN29.46.12.2011.20Potassium CarbonateK2CO332.732.511.0040.60Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl9.910.525.50Sodium CarbonateNa2CO3011.30Sodium ChlorideNaCl4.84.89.40Tricalcium PhosphateCa3(PO4)20.40.40.400.40WaterH2O8.810.25.607.50Ash or Unburned CarbonC1.81.2TOTAL100100.099.599.0PERFORMANCE FACTORSAutoignition Temp, ° F.860750780740Open tube burnfast (693-)bvf. prop. 9′just burnBurn rate, secs/in.6.964.24.4Bulk Density0.770.830.720.5Moisture, wt. %0.80.80.50.9Ballistics 80 gr. vol.Lo velocity, fps186719071211794Hi velocity, fps195519241461853ES velocity, fps881725059Av velocity, fps193119141320825SD velocity, fps36712729TTP, ms.0.60.70.10.2Pressure, psi max.1400010200229002000Fouler pressure, psi7600860021000


[0067] In the following Table 3 representative examples are shown of propellant formulations in which a mixture of a gluconic acid salt and a sodium nitrobenzoate salt serves as the ignition aid for the oxidizing and reducing agents as indicated.
3TABLE 3Gluconate with Sodium m-Nitrobenzoate FormulationsChemicalMoleBlackRefRefRefFormulaWeightPowder#781#692#784RAW MATERIALS, wt. %Carbon BlackC12.01CharcoalC12.0115.006.775.7DextrinC6H10O5162.145.43.54.4DicyanodiamideC2H4N484.0855GraphiteC12.01LactoseC12H22O11360.314Sodium m-NitrobenzoateC7H4NO4Na189.118.587.5Potassium NitrateKNO3101.1075.003839.439.6Potassium PerchlorateKClO4138.5529.630.729.6Sodium BenzoateC7H5NaO2144.115.25.56.2Potassium BenzoateC7H5KO2160.22Sodium GluconateC6H11NaO7218.131.21.51.6Potassium GluconateC6H11KO7234.24SulfurS32.0610.00Tricalcium PhosphateCa3(PO4)2310.200.40.40.4TOTAL100.00100100.0100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO396.110.97Carbon DioxideCO244.0124.93816.811.4Carbon MonoxideCO28.013.972518.220.4Hydrogen SulfideH2S34.080.69MethaneCH416.040.49NitrogenN228.029.929.26.19.4Potassium CarbonateK2CO3138.2026.5631.832.933.2Potassium ThiocyanateKCNS97.181.97Potassium SulfateK2SO4174.2512.34Potassium ThiosulfateK2S2O3190.3215.40Potassium SulfideK2S110.262.23Potassium ChlorideKCl74.569.510.19.3Sodium CarbonateNa2CO3105.99Sodium ChlorideNaCl58.455.15.15.3Tricalcium PhosphateCa3(PO4)2310.200.40.40.4WaterH2O18.028.98.28.8Ash or Unburned CarbonC12.010.532.12.21.8TOTAL100.00100100.0100PERFORMANCE FACTORSAutoignition Temp, ° F.580780750820Open tube burnjust burnfastBurn rate, secs/in.2.36.35.17.2Bulk Density10.770.810.74Moisture, wt. %<0.50.80.90.8Ballistics 80 gr. vol.Lo velocity, fps1624185119141779Hi velocity, fps1690189619681894ES velocity, fps664554115Av velocity, fps1664187319351840SD velocity, fps26192043TTP, ms.0.80.60.60.6Pressure, psi max.11000104001180016800Fouler pressure, psi810090007800ChemicalRefRefRefRefRefFormula#810A#806#804#807#808RAW MATERIALS, wt. %Carbon BlackCCharcoalC5.585.65.65.65.6DextrinC6H10O55.785.85.85.85.8DicyanodiamideC2H4N44.884.94.94.94.9GraphiteC0.35LactoseC12H22O11Sodium m-NitrobenzoateC7H4NO4Na3.292.33.33.33.3Potassium NitrateKNO339.5738.738.739.739.7Potassium PerchlorateKClO427.9029292928Sodium BenzoateC7H5NaO210.0611.110.19.110.1Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO72.192.22.22.22.2Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.400.40.40.40.4TOTAL100.00100100100100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO22.23.67.13Carbon MonoxideCO29.428.124.428.5Hydrogen SulfideH2SMethaneCH4NitrogenN28.88.999Potassium CarbonateK2CO333.233.133.533.5Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl8.28.38.78.2Sodium CarbonateNa2CO3Sodium ChlorideNaCl5.85.75.45.5Tricalcium PhosphateCa3(PO4)20.40.40.40.4WaterH2O10.310.29.810.2Ash or Unburned CarbonC1.71.71.71.7TOTAL100100100100PERFORMANCE FACTORSAutoignition Temp, ° F.800810820800Open tube burnBurn rate, secs/in.7.17.67.17.2Bulk Density0.840.810.80.82Moisture, wt. %0.90.80.80.9Ballistics 80 gr. vol.Lo velocity, fps18701868189119071849Hi velocity, fps19301902192919721909ES velocity, fps6034386560Av velocity, fps19081883191319521885SD velocity, fps2415202622TTP, ms.0.70.70.70.70.7Pressure, psi max.103001000011200120009900Fouler pressure, psi64007100800074006600ChemicalRefRefRefRefRefFormula#803#799#802#801#789RAW MATERIALS, wt. %Carbon BlackCCharcoalC5.635.65.65.5DextrinC6H10O55.865.85.86.8DicyanodiamideC2H4N44.94.94.94.94.9GraphiteCLactoseC12H22O11Sodium m-NitrobenzoateC7H4NO4Na4.355.36.37.2Potassium NitrateKNO338.738.738.738.738.3Potassium PerchlorateKClO42929292928.7Sodium BenzoateC7H5NaO29.110.88.17.16Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO72.22.22.22.22.2Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100100100100100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO24.75.266.96.6Carbon MonoxideCO27.225.825.925.325.6Hydrogen SulfideH2SMethaneCH4NitrogenN28.9999.19.1Potassium CarbonateK2CO333.134.133.132.732.5Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl8.37.28.38.88.6Sodium CarbonateNa2CO3Sodium ChlorideNaCl5.76.65.75.35.3Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O1010.89.99.810.2Ash or Unburned CarbonC1.70.91.71.71.7TOTAL100100100100100PERFORMANCE FACTORSAutoignition Temp, ° F.780780780770770Open tube burnBurn rate, secs/in.6.87.67.26.87.7Bulk Density0.790.780.780.770.8Moisture, wt. %0.90.70.90.80.8Ballistics 80 gr. vol.Lo velocity, fps19011896189118591823Hi velocity, fps19881968191219451866ES velocity, fps8772218643Av velocity, fps19441942189819021839SD velocity, fps373082415TTP, ms.0.60.60.70.6Pressure, psi max.133001310010400116008800Fouler pressure, psi85009800700058007300ChemicalRefRefRefRefRefFormula#782#788#812#786#776RAW MATERIALS, wt. %Carbon BlackCCharcoalC5.65.65.66.16.7DextrinC6H10O55.86.35.83.85.3DicyanodiamideC2H4N44.94.94.95.35GraphiteCLactoseC12H22O11Sodium m-NitrobenzoateC7H4NO4Na7.37.37.37.98.4Potassium NitrateKNO338.738.438.738.737.5Potassium PerchlorateKClO42928.8292929.3Sodium BenzoateC7H5NaO26.16.16.65.2Potassium BenzoateC7H5KO26.1Sodium GluconateC6H11NaO72.22.22.22.22.2Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100100100100100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO286.99.97.55.9Carbon MonoxideCO24.325.422.224.726.8Hydrogen SulfideH2SMethaneCH4NitrogenN29.29.19.29.59.2Potassium CarbonateK2CO332.732.532.43331.8Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl8.88.8128.49.1Sodium CarbonateNa2CO3Sodium ChlorideNaCl5.35.32.85.65.3Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O9.69.99.499.4Ash or Unburned CarbonC1.71.71.71.92.1TOTAL100100100100100PERFORMANCE FACTORS40grvol.Autoignition Temp, ° F.800780780810780Open tube burnfast,blk.fstr.Burn rate, secs/in.4.97.36.77.17Bulk Density0.980.790.820.740.77Moisture, wt. %0.70.70.70.90.9Ballistics 80 gr. vol.Lo velocity, fps16761892197518001871Hi velocity, fps17061931201218681901ES velocity, fps3039376830Av velocity, fps16951908198618421890SD velocity, fps1214142712TTP, ms.0.20.60.60.60.65Pressure, psi max.1310010400118001210010500Fouler pressure, psi1260085001000081008400ChemicalRefRefRefRefRefFormula#800#780#809#805#815RAW MATERIALS, wt. %Carbon BlackCCharcoalC3.36.55.65.66.6DextrinC6H10O565.25.85.84.8DicyanodiamideC2H4N45.44.83.94.95.9GraphiteCLactoseC12H22O11Sodium m-NitrobenzoateC7H4NO4Na38.12.34.36.3Potassium NitrateKNO338.736.438.738.738.7Potassium PerchlorateKClO42928.4292929Sodium BenzoateC7H5NaO211.87.111.18.15.1Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO72.43.13.23.23.2Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100100100100100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO23.62.768.2Carbon MonoxideCO26.932.929.225.723.8Hydrogen SulfideH2SMethaneCH4NitrogenN29.28.88.18.99.8Potassium CarbonateK2CO334.13233.633.232Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl7.37.67.88.29.5Sodium CarbonateNa2CO3Sodium ChlorideNaCl6.46.16.15.74.8Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O11.110.210.410.29.5Ash or Unburned CarbonC121.71.72TOTAL100100100100100PERFORMANCE FACTORSAutoignition Temp, ° F.780780810780730Open tube burnBurn rate, secs/in.9.977.37.16Bulk Density0.750.80.820.760.75Moisture, wt. %0.80.90.80.80.8Ballistics 80 gr. vol.Lo velocity, fps17891762193918541835Hi velocity, fps18651841198518991908ES velocity, fps7679464573Av velocity, fps18211816196418791875SD velocity, fps2931211826TTP, ms.0.60.70.70.70.7Pressure, psi max.153009200120001070010000Fouler pressure, psi71007500840071006800ChemicalRefRefRefRefRefFormula#768#761#763#765#769RAW MATERIALS, wt. %Carbon BlackCCharcoalC6.77.66.56.56.5DextrinC6H10O55.45.26.35.25.2DicyanodiamideC2H4N454.94.85.94.8GraphiteCLactoseC12H22O11Sodium m-NitrobenzoateC7H4NO4Na7.38.28.28.28.2Potassium NitrateKNO337.636.836.836.838.2Potassium PerchlorateKClO429.328.728.728.728.5Sodium BenzoateC7H5NaO25.155.15.15Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO73.23.23.23.23.2Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100100100100100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO26.92.53.42.66.8Carbon MonoxideCO25.930.829.529.725.9Hydrogen SulfideH2SMethaneCH4NitrogenN29.198.99.69.1Potassium CarbonateK2CO331.631.431.831.832.3Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl9.38.68.28.28.6Sodium CarbonateNa2CO3Sodium ChlorideNaCl5.15.35.65.65.3Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O9.69.610.210.19.6Ash or Unburned CarbonC2.12.4222TOTAL100100100100100PERFORMANCE FACTORSAutoignition Temp, ° F.780790800780780Open tube burnBurn rate, secs/in.6.96.77.27.26.9Bulk Density0.810.780.850.780.8Moisture, wt. %0.80.90.70.90.8Ballistics 80 gr. vol.Lo velocity, fps18481831183918701840Hi velocity, fps18851914186419291885ES velocity, fps3783255945Av velocity, fps18671885184918931863SD velocity, fps153292219TTP, ms.0.60.60.70.650.65Pressure, psi max.104001060092001120010300Fouler pressure, psi81007700760084007700ChemicalRefRefRefRefRefFormula#771#773#793#759#762RAW MATERIALS, wt. %Carbon BlackCCharcoalC6.56.56.56.65.6DextrinC6H10O55.25.36.35.35.4DicyanodiamideC2H4N44.84.84.84.95GraphiteCLactoseC12H22O11Sodium m-NitrobenzoateC7H4NO4Na8.28.28.28.38.4Potassium NitrateKNO336.736.836.837.237.5Potassium PerchlorateKClO43028.728.72929.3Sodium BenzoateC7H5NaO256.15.15.15.2Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO73.23.23.23.23.2Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100100100100100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO26.92.83.45.27.7Carbon MonoxideCO26.130.229.527.424.7Hydrogen SulfideH2SMethaneCH4NitrogenN28.98.98.999.2Potassium CarbonateK2CO331.332.131.832.132.3Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl9.57.98.28.58.6Sodium CarbonateNa2CO30Sodium ChlorideNaCl5.35.85.65.65.6Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O9.69.910.29.79.8Ash or Unburned CarbonC2222.11.7TOTAL100100100100100PERFORMANCE FACTORSAutoignition Temp, ° F.790790800800Open tube burnBurn rate, secs/in.6.87.16.86.47.3Bulk Density0.750.780.740.770.78Moisture, wt. %0.90.90.90.80.8Ballistics 80 gr. vol.Lo velocity, fps18181829182318851882Hi velocity, fps19121850185219481908ES velocity, fps9421296326Av velocity, fps18731844184119131896SD velocity, fps408122812TTP, ms.0.60.70.60.6Pressure, psi max.129009400104001090010400Fouler pressure, psi92007300800083008500ChemicalRefRefRefRefRefFormula#764#766#770#772#774RAW MATERIALS, wt. %Carbon BlackCCharcoalC6.76.76.76.76.7DextrinC6H10O54.35.45.45.45.3DicyanodiamideC2H4N453.9555GraphiteCLactoseC12H22O11Sodium m-NitrobenzoateC7H4NO4Na8.48.48.48.48.4Potassium NitrateKNO337.637.636.237.737.6Potassium PerchlorateKClO429.329.329.52829.3Sodium BenzoateC7H5NaO25.15.15.25.24.1Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO73.23.23.23.23.2Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100100100100100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO27.17.44.13.67.6Carbon MonoxideCO25.525.82929.125.2Hydrogen SulfideH2SMethaneCH4NitrogenN29.28.499.29.2Potassium CarbonateK2CO332.332.231.332.231.6Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl8.68.78.88.19.3Sodium CarbonateNa2CO30Sodium ChlorideNaCl5.65.65.55.55.1Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O9.29.49.89.89.5Ash or Unburned CarbonC2.12.12.12.12.1TOTAL100100100100100PERFORMANCE FACTORSAutoignition Temp, ° F.790780780780790Open tube burnBurn rate, secs/in.75.87.176.8Bulk Density0.750.770.810.740.76Moisture, wt. %0.90.80.90.80.8Ballistics 80 gr. vol.Lo velocity, fps18481924181217881825Hi velocity, fps19191990185018391931ES velocity, fps71663851106Av velocity, fps18921960182818151885SD velocity, fps2628152435TTP, ms.0.60.60.70.70.6Pressure, psi max.10800134009100930010100Fouler pressure, psi85009200700077006900ChemicalRefRefRefRefRefFormula#767#779#756#758#760RAW MATERIALS, wt. %Carbon BlackCCharcoalC6.56.76.66.66.6DextrinC6H10O55.25.44.33.33.8DicyanodiamideC2H4N44.85565.5GraphiteCLactoseC12H22O11Sodium m-NitrobenzoateC7H4NO4Na9.36.38.48.48.4Potassium NitrateKNO336.83837.637.637.6Potassium PerchlorateKClO428.729.729.329.329.3Sodium BenzoateC7H5NaO25.15.25.15.15.1Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO73.23.33.33.33.3Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100100100100100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO23.88.56.96.66.9Carbon MonoxideCO29.124.125.725.525.4Hydrogen SulfideH2SMethaneCH4NitrogenN299.19.29.89.5Potassium CarbonateK2CO332.231.632.332.332.3Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl7.89.98.68.68.6Sodium CarbonateNa3CO3Sodium ChlorideNaCl5.94.85.65.65.6Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O9.89.59.39.19.2Ash or Unburned CarbonC22.122.12.1TOTAL100100100100100PERFORMANCE FACTORSAutoignition Temp, ° F.770780790800810Open tube burnBurn rate, secs/in.6.56.66.66.96.6Bulk Density0.780.810.780.770.76Moisture, wt. %0.90.80.90.8Ballistics 80 gr. vol.Lo velocity, fps18261858191218111852Hi velocity, fps18931922195018431923ES velocity, fps6764383271Av velocity, fps18611895192918271899SD velocity, fps2527181428TTP, ms.0.60.60.60.6Pressure, psi max.1100010600122001040010900Fouler pressure, psi77006000830089008100ChemicalRefRefRefRefRefFormula#755#757#778#730#723RAW MATERIALS, wt. %Carbon BlackCCharcoalC6.76.74.65.76.5DextrinC6H10O53.33.35.43.53.5DicyanodiamideC2H4N45655GraphiteCLactoseC12H22O113.7Sodium m-NitrobenzoateC7H4NO4Na8.58.58.57.34.6Potassium NitrateKNO33837.43839.440.5Potassium PerchlorateKClO429.629.229.530.731.5Sodium BenzoateC7H5NaO25.25.25.34.45.1Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO73.33.33.33.64.2Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100100100100100.0COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO28.8610.217.323.1Carbon MonoxideCO23.926.221.914.611.2Hydrogen SulfideH2SMethaneCH4NitrogenN29.29.89.29.36Potassium CarbonateK2CO332.53232.732.933Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl8.88.88.710.111.2Sodium CarbonateNa2CO3Sodium ChlorideNaCl5.65.55.65.14.6Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O8.79.29.98.58.5Ash or Unburned CarbonC2.12.11.41.82TOTAL100100100100100.0PERFORMANCE FACTORSAutoignition Temp, ° F.800800790800720Open tube burnBurn rate, secs/in.6.87.47.26.86.3Bulk Density0.780.740.790.810.83Moisture, wt. %0.80.90.90.80.7Ballistics 80 gr. vol.Lo velocity, fps18461747185419021901Hi velocity, fps19221801189619471940ES velocity, fps7654414539Av velocity, fps19021778187919281921SD velocity, fps3124161917TTP, ms.0.50.60.60.70.8Pressure, psi max.1310096009800109009700Fouler pressure, psi105006800760090006200ChemicalRefRefRefRefRefFormula#794#775#729A#747A#729RAW MATERIALS, wt. %Carbon BlackCCharcoalC5.66.56.686.686.7DextrinC6H10O53.85.33.293.293.3DicyanodiamideC2H4N44.94.84.982.495GraphiteC0.350.35LactoseC12H22O11Sodium m-NitrobenzoateC7H4NO4Na7.38.28.478.478.5Potassium NitrateKNO338.736.837.2737.2737.4Potassium PerchlorateKClO42928.729.1029.1029.2Sodium BenzoateC7H5NaO26.15.15.187.675.2Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO74.24.24.284.284.3Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.400.400.4TOTAL100100100.00100.00100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO29.34.15.26.7Carbon MonoxideCO22.628.628.426Hydrogen SulfideH2SMethaneCH4NitrogenN29.28.97.59.1Potassium CarbonateK2CO333.432.233.732.4Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl87.86.98.3Sodium CarbonateNa2CO30Sodium ChlorideNaCl5.95.96.95.8Tricalcium PhosphateCa3(PO4)20.40.40.40.4WaterH2O9.510.18.99.2Ash or Unburned CarbonC1.722.12.1TOTAL100100100100PERFORMANCE FACTORSAutoignition Temp, ° F.810780820Open tube burnBurn rate, secs/in.6.97.26.3Bulk Density0.760.790.77Moisture, wt. %0.80.80.9Ballistics 80 gr. vol.Lo velocity, fps182617951789Hi velocity, fps186518431899ES velocity, fps3948110Av velocity, fps184318301849SD velocity, fps151939TTP, ms.0.60.70.6Pressure, psi max.10000920010600Fouler pressure, psi950069006700ChemicalRefRefRefRefRefFormula#747#737A#688#687#697RAW MATERIALS, wt. %Carbon BlackCCharcoalC6.76.987711.6DextrinC6H10O53.34.983.53.53.5DicyanodiamideC2H4N42.52.49GraphiteC0.35LactoseC12H22O11444Sodium m-NitrobenzoateC7H4NO4Na8.54.9825.05Potassium NitrateKNO337.439.2639.439.439.4Potassium PerchlorateKClO429.230.6030.730.726.1Sodium BenzoateC7H5NaO27.75.488.55.55.5Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO74.34.484.54.54.5Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.400.40.40.4TOTAL100100.00100.0100.0100.0COMBUSTION PRODUCTS, wt. %Ammonium carbonate(NH4)2CO3Carbon DioxideCO25.212.917.9Carbon MonoxideCO28.420.916.835.6Hydrogen SulfideH2SMethaneCH4NitrogenN27.55.65.85.8Potassium CarbonateK2CO333.73332.833Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl6.99.910.17.5Sodium CarbonateNa2CO3Sodium ChlorideNaCl6.95.35.15.1Tricalcium PhosphateCa3(PO4)20.40.40.40.4WaterH2O8.99.88.99Ash or Unburned CarbonC2.12.22.23.6TOTAL100100.0100.0100.0PERFORMANCE FACTORSAutoignition Temp, ° F.800710700680Open tube burnfastfastfastBurn rate, secs/in.6.56.55.75.3Bulk Density0.750.810.850.8Moisture, wt. % 0.90.80.90.9Ballistics 80 gr. vol.Lo velocity, fps1846184918291661Hi velocity, fps1873189018981692ES velocity, fps27416931Av velocity, fps1858187418711675SD velocity, fps10152911TTP, ms.0.60.70.70.8Pressure, psi max.1110010200102007300Fouler pressure, psi9200720064005400ChemicalRefRefRefRefRefFormula#698#699#720#732#735RAW MATERIALS, wt. %Carbon BlackCCharcoalC77779.5DextrinC6H10O53.53.53.53.55DicyanodiamideC2H4N4GraphiteCLactoseC12H22O1144Sodium m-NitrobenzoateC7H4NO4Na55555Potassium NitrateKNO342.443.437.439.439.4Potassium PerchlorateKClO427.730.732.730.730.7Sodium BenzoateC7H5NaO25.55.55.59.55.5Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO74.54.54.54.54.5Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100.0100100.0100100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO215.927.217.913.514.8Carbon MonoxideCO17.86.417.220.820.4Hydrogen SulfideH2SMethaneCH4NitrogenN26.26.45.65.85.8Potassium CarbonateK2CO33535.531.434.632.9Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl8.410.111.28.210.1Sodium CarbonateNa2CO3Sodium ChlorideNaCl5.15.15.16.65.1Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O96.797.97.5Ash or Unburned CarbonC2.22.22.22.23TOTAL100.0100100.0100100PERFORMANCE FACTORSAutoignition Temp, ° F.700760730730720Open tube burnBurn rate, secs/in.6.56.36.2 or 7.1?4.95.2Bulk Density0.810.830.820.790.77Moisture, wt. %0.90.90.70.80.8Ballistics 80 gr. vol.Lo velocity, fps17451953195619311937Hi velocity, fps18161991200820172006ES velocity, fps7138528669Av velocity, fps17861976199819791969SD velocity, fps2515224127TTP, ms.0.80.70.70.60.6Pressure, psi max.820011600117001580013000Fouler pressure, psi490075009200102008500ChemicalRefRefRefRefRefFormula#737#743#746#726#731RAW MATERIALS, wt. %Carbon BlackCCharcoalC77777DextrinC6H10O554.2535DicyanodiamideC2H4N42.51.32.5GraphiteCLactoseC12H22O114Sodium m-NitrobenzoateC7H4NO4Na5555.57.5Potassium NitrateKNO339.441.437.239.439.4Potassium PerchlorateKClO430.730.728.930.730.7Sodium BenzoateC7H5NaO25.55.59.55.55.5Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO74.54.54.54.54.5Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100100100100.0100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO215.921.21.217.5Carbon MonoxideCO17.31232.217.1Hydrogen SulfideH2SMethaneCH4NitrogenN27.577.26Potassium CarbonateK2CO332.934.333.133.8Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl10.1107.29.1Sodium CarbonateNa2CO3Sodium ChlorideNaCl5.15.26.65.9Tricalcium PhosphateCa3(PO4)20.40.40.40.4WaterH2O8.67.79.98Ash or Unburned CarbonC2.22.22.22.2TOTAL1001001000.0100PERFORMANCE FACTORSAutoignition Temp, ° F.790760820710730Open tube burnBurn rate, secs/in.7.57.47.26.75.1Bulk Density0.820.830.820.80.83Moisture, wt. %0.80.90.70.80.8Ballistics 80 gr. vol.Lo velocity, fps18801851185918411971Hi velocity, fps19331888188519102018ES velocity, fps5337266947Av velocity, fps19081863187818742002SD velocity, fps2014102519TTP, ms.0.70.70.70.70.65Pressure, psi max.10200880099001030012700Fouler pressure, psi80006600850077008400ChemicalRefRefRefRefRefFormula#691#725#733#748#706RAW MATERIALS, wt. %Carbon BlackCCharcoalC47767DextrinC6H10O53.53.53.543.5DicyanodiamideC2H4N42GraphiteCLactoseC12H22O1144Sodium m-NitrobenzoateC7H4NO4Na8991010.5Potassium NitrateKNO339.439.440.435.939.4Potassium PerchlorateKClO430.730.729.728.630.7Sodium BenzoateC7H5NaO25.55.55.58.6Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO74.54.54.54.54.5Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100.0100100100100.0COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO220.618.417.90.524.2Carbon MonoxideCO13.416.516.833.511.1Hydrogen SulfideH2SMethaneCH4NitrogenN26.16.16.376.2Potassium CarbonateK2CO333.834.134.833.732.3Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl9.18.88.15.510.7Sodium CarbonateNa2CO3Sodium ChlorideNaCl5.96.16.17.84.6Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O9.57.47.49.78.3Ash or Unburned CarbonC1.22.22.21.92.2TOTAL100.0100100100100.0PERFORMANCE FACTORSAutoignition Temp, ° F.720720720780750Open tube burnfastfastBurn rate, secs/in.5.35.55.36.35.2Bulk Density0.830.830.80.760.79Moisture, wt. %0.80.90.80.80.9Ballistics 80 gr. vol.Lo velocity, fps19971942189118831759Hi velocity, fps20501972196319101791ES velocity, fps5350722732Av velocity, fps20201963193718961773SD velocity, fps1923281112TTP, ms.0.60.60.60.60.7Pressure, psi max.130001220012500123007800Fouler pressure, psi1090088009700123005400ChemicalRefRefRefRefRefFormula#744#722#745#738#753RAW MATERIALS, wt. %Carbon BlackCCharcoalC7.37.57.67.69DextrinC6H10O553.5554DicyanodiamideC2H4N41.51.51GraphiteCLactoseC12H22O114.3Sodium m-NitrobenzoateC7H4NO4Na5.25.45.48.15Potassium NitrateKNO339.438.338.438.339.4Potassium PerchlorateKClO430.729.830.729.830.7Sodium BenzoateC7H5NaO25.85.96.15.95.5Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO74.74.94.94.95Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.40.4TOTAL100100.0100100100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO216.211.512.911.814.8Carbon MonoxideCO17.723.521.423.319.9Hydrogen SulfideH2SMethaneCH4NitrogenN26.85.76.75.96.5Potassium CarbonateK2CO33332.432.333.432.7Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl9.99.29.98.310.3Sodium CarbonateNa2CO3Sodium ChlorideNaCl5.35.45.36.15Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O8.49.68.78.47.6Ash or Unburned CarbonC2.32.32.42.42.8TOTAL100100.0100100100PERFORMANCE FACTORSAutoignition Temp, ° F.760710760720760Open tube burnBurn rate, secs/in.6.86.16.45.66.4Bulk Density0.790.850.820.80.78Moisture, wt. %0.80.80.80.80.8Ballistics 80 gr. vol.Lo velocity, fps18561806184518651858Hi velocity, fps18901845188518851912ES velocity, fps3439402054Av velocity, fps18751827186118711882SD velocity, fps131617821TTP, ms.0.70.70.80.70.7Pressure, psi max.9300910092001020010400Fouler pressure, psi57006900680074006800ChemicalRefRefRefRefRefFormula#736#750#754#752A#752RAW MATERIALS, wt. %Carbon BlackCCharcoalC86.77.77.978DextrinC6H10O553.33.33.994DicyanodiamideC2H4N4111.001GraphiteCLactoseC12H22O11Sodium m-NitrobenzoateC7H4NO4Na58.58.54.985Potassium NitrateKNO339.437.437.439.2639.4Potassium PerchlorateKClO430.729.229.230.5930.7Sodium BenzoateC7H5NaO26.37.76.75.485.5Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO75.25.85.85.986Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.400.4TOTAL100100100100.00100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO215.76.96.616.816.8Carbon MonoxideCO19.127.227.917.517.5Hydrogen SulfideH2SMethaneCH4NitrogenN25.86.56.56.56.5Potassium CarbonateK2CO333.434.333.73333Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl9.46.36.99.99.9Sodium CarbonateNa2CO3Sodium ChlorideNaCl5.67.46.95.35.3Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O8.18.98.78.18.1Ash or Unburned CarbonC2.52.12.42.52.5TOTAL100100100100100PERFORMANCE FACTORSAutoignition Temp, ° F.720790780760Open tube burnBurn rate, secs/in.5.965.46.4Bulk Density0.80.80.760.81Moisture, wt. %0.90.90.90.9Ballistics 80 gr. vol.Lo velocity, fps1917186617351926Hi velocity, fps1944195218871941ES velocity, fps278615215Av velocity, fps1926191718331935SD velocity, fps1035596TTP, ms.0.70.60.60.7Pressure, psi max.10800129001520011400Fouler pressure, psi7200980088008700ChemicalRefRefRefRefRefFormula#707#751#749A#734#749RAW MATERIALS, wt. %Carbon BlackCCharcoalC76.76.9877DextrinC6H10O53.53.33.9954DicyanodiamideC2H4N411.001GraphiteC0.35LactoseC12H22O114Sodium m-NitrobenzoateC7H4NO4Na7.18.54.9855Potassium NitrateKNO335.937.439.2539.439.4Potassium PerchlorateKClO42829.230.5930.730.7Sodium BenzoateC7H5NaO27.86.75.485.55.5Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO76.36.86.9877Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.40.400.40.4TOTAL100.0100100.00100100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO28.517.918.417.9Carbon MonoxideCO34.925.615.91615.9Hydrogen SulfideH2SMethaneCH4NitrogenN25.56.56.55.86.5Potassium CarbonateK2CO332.834.133.433.433.4Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl6.36.59.59.59.5Sodium CarbonateNa2CO3Sodium ChlorideNaCl77.25.65.65.6Tricalcium PhosphateCa3(PO4)20.40.40.40.40.4WaterH2O10.99.18.68.78.6Ash or Unburned CarbonC2.22.12.22.22.2TOTAL100.0100100100100PERFORMANCE FACTORSAutoignition Temp, ° F.700770720790Open tube burnfastBurn rate, secs/in.5.866.26.7Bulk Density0.80.80.840.79Moisture, wt. %0.80.80.90.9Ballistics 80 gr. vol.Lo velocity, fps1808187718481862Hi velocity, fps1844192919281916ES velocity, fps36528054Av velocity, fps1826191019011886SD velocity, fps12203321TTP, ms.0.70.60.70.7Pressure, psi max.9600123001040010400Fouler pressure, psi7500930063006200 (8100)ChemicalRefRefRefRefRefFormula#695#693A#693#728#696RAW MATERIALS, wt. %Carbon BlackCCharcoalC43.99477DextrinC6H10O53.53.493.533.5DicyanodiamideC2H4N4GraphiteC0.35LactoseC12H22O1144Sodium m-NitrobenzoateC7H4NO4Na57.97885Potassium NitrateKNO339.439.2639.439.439.4Potassium PerchlorateKClO430.730.5930.730.723.5Sodium BenzoateC7H5NaO25.55.485.55.5Potassium BenzoateC7H5KO2Sodium GluconateC6H11NaO77.58.478.511.511.7Potassium GluconateC6H11KO7SulfurSTricalcium PhosphateCa3(PO4)20.40.400.40.40.4TOTAL100.0100.00100100.0100.0COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO221.722.526.8Carbon MonoxideCO11.8117.633.4Hydrogen SulfideH2SMethaneCH4NitrogenN25.86.16.15.8Potassium CarbonateK2CO333.73533.435.2Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl9.17.89.53.8Sodium CarbonateNa2CO3Sodium ChlorideNaCl5.96.95.66.9Tricalcium PhosphateCa3(PO4)20.40.40.40.4WaterH2O10.49.18.412.3Ash or Unburned CarbonC1.21.22.22.2TOTAL100.0100100.0100.0PERFORMANCE FACTORSAutoignition Temp, ° F.720710760660Open tube burnjustfastjustburnburnBurn rate, secs/in.6.75.766.6Bulk Density0.840.80.840.79Moisture, wt. %0.90.80.90.8Ballistics 80 gr. vol.Lo velocity, fps1848189916101483Hi velocity, fps1888199016761517ES velocity, fps40916634Av velocity, fps1874194516501502SD velocity, fps16392712TTP, ms.0.70.650.90.9Pressure, psi max.95001260059005000Fouler pressure, psi6100940032003100ChemicalRefRefRefRefFormula#727#811#813#814RAW MATERIALS, wt. %Carbon BlackCCharcoalC45.65.66.6DextrinC6H10O535.85.84.8DicyanodiamideC2H4N44.94.95.9GraphiteCLactoseC12H22O11Sodium m-NitrobenzoateC7H4NO4Na87.37.36.3Potassium NitrateKNO339.438.738.738.7Potassium PerchlorateKClO430.7292929Sodium BenzoateC7H5NaO26.1Potassium BenzoateC7H5KO26.15.1Sodium GluconateC6H11NaO714.5Potassium GluconateC6H11KO72.22.23.2SulfurSTricalcium PhosphateCa3(PO4)20.40.40.40.4TOTAL100100100100COMBUSTION PRODUCTS, wt. %Ammonium Carbonate(NH4)2CO3Carbon DioxideCO231.39.68.28Carbon MonoxideCO222.323.923.6Hydrogen SulfideH2SMethaneCH4NitrogenN26.19.29.29.8Potassium CarbonateK2CO334.532.532.732.4Potassium ThiocyanateKCNSPotassium SulfateK2SO4Potassium ThiosulfateK2S2O3Potassium SulfideK2SPotassium ChlorideKCl8.412.69.510.3Sodium CarbonateNa2CO3Sodium ChlorideNaCl6.42.34.84.1Tricalcium PhosphateCa3(PO4)20.40.40.40.4WaterH2O9.79.49.69.4Ash or Unburned CarbonC1.21.71.72TOTAL100100100100PERFORMANCE FACTORSAutoignition Temp, ° F.760790780820Open tube burnBurn rate, secs/in.6.46.87.36.9Bulk Density0.850.850.790.83Moisture, wt. %0.70.90.80.8Ballistics 80 gr. vol.Lo velocity, fps1426194717621904Hi velocity, fps1466203018151945ES velocity, fps40838341Av velocity, fps1449199517861924SD velocity, fps14332016TTP, ms.0.90.60.70.6Pressure, psi max.350012600930010400Fouler pressure, psi1900850067007600


[0068] From the foregoing it will be seen that this invention is one well adapted to attain all the ends and objects hereinabove set forth, together with the other advantages which are obvious and which are inherent to the invention.


[0069] It will be understood that certain features and subcombinations are of utility and may be employed without reference to other features and subcombinations. This is contemplated by and is within the scope of the claims.


[0070] Since many possible embodiments may be made of the invention without departing from the scope thereof, it is understood that all matter herein set forth is to be interpreted as illustrative and not in a limiting sense.


Claims
  • 1. A sulfur replacement composition for deflagrating gas generating formulations, said sulfur replacement composition comprising a gluconic acid salt.
  • 2. The sulfur replacement composition as in claim 1, said gluconic acid salt being selected from the group consisting of sodium gluconate and potassium gluconate.
  • 3. The sulfur replacement composition as in claim 1, said gluconic acid comprising sodium D-gluconate.
  • 4. The sulfur replacement composition as in claim 1 further including a nitro aromatic acid salt.
  • 5. The sulfur replacement composition as in claim 4 said nitro aromatic acid salt comprising a nitrobenzoate salt.
  • 6. The sulfur replacement composition as in claim 5, said nitrobenzoate salt comprising sodium meta-nitrobenzoate.
  • 7. The sulfur replacement composition as in claim 1 comprising an alkali metal gluconic acid salt, sodium meta-nitrobenzoate, and mixtures thereof.
  • 8. A sulfur replacement composition for deflagrating gas generating formulations, said sulfur replacement composition comprising a sodium nitrobenzoate salt.
  • 9. The sulfur replacement composition as in claim 8, said sodium nitrobenzoate salt comprising sodium meta-nitrobenzoate.
  • 10. The sulfur replacement composition as in claim 8 further including a gluconic acid salt.
  • 11. The sulfur replacement composition as in claim 10 said gluconic acid salt being selected from the group consisting of sodium gluconate and potassium gluconate.
  • 12. The sulfur replacement composition as in claim 10 said gluconic acid salt comprising sodium D-gluconate.
  • 13. The sulfur replacement composition as in claim 8 comprising an alkali metal gluconic acid salt, sodium meta-nitrobenzoate, and mixtures thereof.
  • 14. A propellant composition comprising a sulfur free deflagrating gas generating formulation, and a first ignition aid of a gluconic acid salt.
  • 15. The propellant composition as in claim 14, said sulfur free deflagrating gas generating formulation including oxidizing and reducing agents selected from the group consisting of carbon, sugars, nitrate salts, perchlorate salts, benzoate salts, and mixtures thereof.
  • 16. The propellant composition as in claim 15, said sulfur free deflagrating gas generating formulation including oxidizing and reducing agents selected from the group consisting of carbon, lactose, potassium nitrate, potassium perchlorate, sodium benzoate, and mixtures thereof.
  • 17. The propellant composition as in claim 15, said sulfur free deflagrating gas generating formulation further including propellant additives selected from the group consisting of binders, burning rate modifiers, flow agents, colorants, coating agents, moisture retardants and mixtures thereof.
  • 18. The propellant composition as in claim 17 wherein said binders comprise dextrin.
  • 19. The propellant composition as in claim 17 wherein said burning rate modifiers comprise dicyanodiamide.
  • 20. The propellant composition as in claim 17 wherein said flow agents comprise tricalcium phosphate.
  • 21. The propellant composition as in claim 17 wherein said colorants comprise carbon black.
  • 22. The propellant composition as in claim 17 wherein said coating agents comprise graphite.
  • 23. The propellant composition as in claim 17 wherein said moisture retardants comprise a silicon compound.
  • 24. The propellant composition as in claim 14, said gluconic acid salt being selected from the group consisting of sodium gluconate and potassium gluconate.
  • 25. The propellant composition as in claim 14, said gluconic acid salt comprising sodium D-gluconate.
  • 26. The propellant composition as in claim 14 further including a second ignition aid of a nitro aromatic acid salt.
  • 27. The propellant composition as in claim 26, said nitro aromatic acid salt comprising sodium meta-nitrobenzoate.
  • 28. The propellant composition as in claim 14 wherein said gluconic acid salt is present in the range of 2 to 15 percent by weight.
  • 29. The propellant composition as in claim 26, wherein said nitro aromatic acid salt is present in the range of 2 to 12 percent by weight.
  • 30. A propellant composition comprising a sulfur free deflagrating gas generating formulation, and a first ignition aid of sodium nitrobenzoate salt.
  • 31. The propellant composition as in claim 30, said sulfur free deflagrating gas generating formulation including oxidizing and reducing agents selected from the group consisting of carbon, sugars, nitrate salts, perchlorate salts, benzoate salts, and mixtures thereof.
  • 32. The propellant composition as in claim 31, said sulfur free deflagrating gas generating formulation including oxidizing and reducing agents selected from the group consisting of carbon, lactose, potassium nitrate, potassium perchlorate, sodium benzoate, and mixtures thereof.
  • 33. The propellant composition as in claim 31, said sulfur free deflagrating gas generating formulation further including propellant additives selected from the group consisting of binders, burning rate modifiers, flow agents, colorants, coating agents, moisture retardants and mixtures thereof.
  • 34. The propellant composition as in claim 33 wherein said binders comprise dextrin.
  • 35. The propellant composition as in claim 33 wherein said burning rate modifiers comprise dicyanodiamide.
  • 36. The propellant composition as in claim 33 wherein said flow agents comprise tricalcium phosphate.
  • 37. The propellant composition as in claim 33 wherein said colorants comprise carbon black.
  • 38. The propellant composition as in claim 33 wherein said coating agents comprise graphite.
  • 39. The propellant composition as in claim 33 wherein said moisture retardants comprise a silicon compound.
  • 40. The propellant composition as in claim 30, said sodium nitrobenzoate salt comprising sodium meta-nitrobenzoate.
  • 41. The propellant composition as in claim 30 further including a second ignition aid of gluconic acid salt.
  • 42. The propellant composition as in claim 41, said gluconic acid salt being selected from the group consisting of sodium gluconate and, potassium gluconate.
  • 43. The sulfur replacement composition as in claim 41, said gluconic acid salt comprising sodium D-gluconate.
  • 44. The propellant composition as in claim 41 wherein said gluconic acid salt is present in the range of 2 to 15 percent by weight.
  • 45. The propellant composition as in claim 30, wherein said sodium nitrobenzoate salt is present in the range of 2 to 12 percent by weight.
  • 46. A combustible charge which forms no corrosive sulfur-containing byproducts of combustion, said charge comprising: a mixture of oxidizing and reducing agents free of sulfur-containing compounds; a mixture of propellant additives free of sulfur-containing compounds; and an ignition aid comprising a gluconic acid salt.
  • 47. The combustible charge as in claim 46, said mixture of oxidizing and reducing agents free of sulfur-containing compounds being selected from the group consisting of carbon, sugars, nitrate salts, perchlorate salts, benzoate salts, and mixtures thereof.
  • 48. The combustible charge as in claim 46, said mixture of oxidizing and reducing agents free of sulfur-containing compounds being selected from the group consisting of carbon, lactose, potassium nitrate, potassium perchlorate, sodium benzoate, and mixtures thereof.
  • 49. The combustible charge as in claim 48, said carbon present in the range of 0 to 15 percent by weight.
  • 50. The combustible charge as in claim 49, said carbon present in the range of 3 to 7 percent by weight.
  • 51. The combustible charge as in claim 48, said lactose present in the range of 0 to 15 percent by weight.
  • 52. The combustible charge as in claim 51, said lactose present in the range of 0 to 10 percent by weight.
  • 53. The combustible charge as in claim 48, said potassium nitrate present in the range of 0 to 60 percent by weight.
  • 54. The combustible charge as in claim 53, said potassium nitrate present in the range of 30 to 45 percent by weight.
  • 55. The combustible charge as in claim 48, said potassium perchlorate present in the range of 0 to 70 percent by weight.
  • 56. The combustible charge as in claim 55, said potassium perchlorate present in the range of 20 to 40 percent by weight.
  • 57. The combustible charge as in claim 48, said sodium benzoate present in the range of 0 to 30 percent by weight.
  • 58. The combustible charge as in claim 57, said sodium benzoate present in the range of 3 to 10 percent by weight.
  • 59. The combustible charge as in claim 46, said mixture of propellant additives free of sulfur-containing compounds being selected from the group consisting of binders, burning rate modifiers, flow agents, colorants, coating agents, moisture retardants and mixtures thereof.
  • 60. The combustible charge as in claim 59 wherein said binders comprise dextrin.
  • 61. The combustible charge as in claim 60, said dextrin present in the range of 0 to 10 percent by weight.
  • 62. The combustible charge as in claim 61, said dextrin present in the range of 2 to 8 percent by weight.
  • 63. The combustible charge as in claim 59 wherein said burning rate modifiers comprise dicyanodiamide.
  • 64. The combustible charge as in claim 63, said dicyanodiamide present in the range of 0 to 10 percent by weight.
  • 65. The combustible charge as in claim 64, said dicyanodiamide present in the range of 2 to 7 percent by weight.
  • 66. The combustible charge as in claim 59 wherein said flow agents comprise tricalcium phosphate.
  • 67. The combustible charge as in claim 59 wherein said colorants comprise carbon black.
  • 68. The combustible charge as in claim 59 wherein said coating agents comprise graphite.
  • 69. The combustible charge as in claim 59 wherein said moisture retardants comprise a silicon compound.
  • 70. The combustible charge as in claim 46, said gluconic acid salt being selected from the group consisting of sodium gluconate and potassium gluconate.
  • 71. The combustible charge as in claim 46, said gluconic acid comprising sodium D-gluconate.
  • 72. The combustible charge as in claim 70, said gluconic acid salt present in the range of 0 to 45 percent by weight.
  • 73. The combustible charge as in claim 72, said gluconic acid salt present in the range of 2 to 15 percent by weight.
  • 74. The combustible charge as in claim 46 further including a nitro aromatic acid salt.
  • 75. The composition as in claim 74, said nitro aromatic acid salt comprising sodium meta-nitrobenzoate.
  • 76. The combustible charge as in claim 74, said nitro aromatic acid salt present in the range of 0 to 40 percent by weight.
  • 77. The combustible charge as in claim 76, said nitro aromatic acid salt present in the range of 2 to 12 percent by weight.
  • 78. The combustible charge as in claim 48 comprising: carbon present in the range of 0 to 15 percent by weight; lactose present in the range of 0 to 15 percent by weight; potassium nitrate present in the range of 0 to 60 percent by weight; sodium benzoate present in the range of 0 to 30 percent by weight; potassium perchlorate present in the range of 0 to 70 percent by weight; and gluconic acid salt present in the range of 0 to 45 percent by weight.
  • 79. The combustible charge as in claim 78 further including a nitro aromatic acid salt present in the range of 0 to 40 percent by weight.
  • 80. The combustible charge as in claim 78 comprising: carbon present in the range of 3 to 7 percent by weight; potassium nitrate present in the range of 30 to 45 percent by weight; sodium benzoate present in the range of 3 to 10 percent by weight; potassium perchlorate present in the range of 20 to 40 percent by weight; and gluconic acid salt present in the range of 2 to 15 percent by weight.
  • 81. The combustible charge as in claim 80 further including a nitro aromatic acid salt present in the range of 2 to 12 percent by weight.
  • 82. A combustible charge which forms no corrosive sulfur-containing byproducts of combustion, said charge comprising: a mixture of oxidizing and reducing agents free of sulfur-containing compounds; a mixture of propellant additives free of sulfur-containing compounds; and an ignition aid comprising a sodium nitrobenzoate salt.
  • 83. The combustible charge as in claim 82, said mixture of oxidizing and reducing agents free of sulfur-containing compounds being selected from the group consisting of carbon, sugars, nitrate salts, perchlorate salts, benzoate salts, and mixtures thereof.
  • 84. The combustible charge as in claim 82, said mixture of oxidizing and reducing agents free of sulfur-containing compounds being selected from the group consisting of carbon, lactose, potassium nitrate, potassium perchlorate, sodium benzoate, and mixtures thereof.
  • 85. The combustible charge as in claim 84, said carbon present in the range of 0 to 15 percent by weight.
  • 86. The combustible charge as in claim 85, said carbon present in the range of 3 to 7 percent by weight.
  • 87. The combustible charge as in claim 84, said lactose present in the range of 0 to 15 percent by weight.
  • 88. The combustible charge as in claim 87, said lactose present in the range of 0 to 10 percent by weight.
  • 89. The combustible charge as in claim 84, said potassium nitrate present in the range of 0 to 60 percent by weight.
  • 90. The combustible charge as in claim 89, said potassium nitrate present in the range of 30 to 45 percent by weight.
  • 91. The combustible charge as in claim 84, said potassium perchlorate present in the range of 0 to 70 percent by weight.
  • 92. The combustible charge as in claim 91, said potassium perchlorate present in the range of 20 to 40 percent by weight.
  • 93. The combustible charge as in claim 84, said sodium benzoate present in the range of 0 to 30 percent by weight.
  • 94. The combustible charge as in claim 93, said sodium benzoate present in the range of 3 to 10 percent by weight.
  • 95. The combustible charge as in claim 82, said mixture of propellant additives free of sulfur-containing compounds being selected from the group consisting of binders, burning rate modifiers, flow agents, colorants, coating agents, moisture retardants and mixtures thereof.
  • 96. The combustible charge as in claim 95 wherein said binders comprise dextrin.
  • 97. The combustible charge as in claim 96, said dextrin present in the range of 0 to 10 percent by weight.
  • 98. The combustible charge as in claim 97, said dextrin present in the range of 2 to 8 percent by weight.
  • 99. The combustible charge as in claim 95 wherein said burning rate modifiers comprise dicyanodiamide.
  • 100. The combustible charge as in claim 99, said dicyanodiamide present in the range of 0 to 10 percent by weight.
  • 101. The combustible charge as in claim 100, said dicyanodiamide present in the range of 2 to 7 percent by weight.
  • 102. The combustible charge as in claim 95 wherein said flow agents comprise tricalcium phosphate.
  • 103. The combustible charge as in claim 95 wherein said colorants comprise carbon black.
  • 104. The combustible charge as in claim 95 wherein said coating agents comprise graphite.
  • 105. The combustible charge as in claim 95 wherein said moisture retardants comprise a silicon compound.
  • 106. The combustible charge as in claim 82, said sodium nitrobenzoate salt comprising sodium meta-nitrobenzoate.
  • 107. The combustible charge as in claim 106, said sodium meta-nitrobenzoate present in the range of 0 to 40 percent by weight.
  • 108. The combustible charge as in claim 107, said sodium meta-nitrobenzoate present in the range of 2 to 12 percent by weight.
  • 109. The combustible charge as in claim 82 further including a gluconic acid salt.
  • 110. The combustible charge as in claim 109, said gluconic acid being selected from the group consisting of sodium gluconate and potassium gluconate.
  • 111. The composition as in claim 109, said gluconic acid comprising sodium D-gluconate.
  • 112. The combustible charge as in claim 109, said gluconic acid salt present in the range of 0 to 45 percent by weight.
  • 113. The combustible charge as in claim 112, said gluconic acid salt present in the range of 2 to 15 percent by weight.
  • 114. The combustible charge as in claim 84 comprising: carbon present in the range of 0 to 15 percent by weight; lactose present in the range of 0 to 15 percent by weight; potassium nitrate present in the range of 0 to 60 percent by weight; sodium benzoate present in the range of 0 to 30 percent by weight; potassium perchlorate present in the range of 0 to 70 percent by weight; and sodium nitrobenzoate salt present in the range of 0 to 40 percent by weight.
  • 115. The combustible charge as in claim 114 further including a gluconic acid salt present in the range of 0 to 45 percent by weight.
  • 116. The combustible charge as in claim 114 comprising: carbon present in the range of 3 to 7 percent by weight; potassium nitrate present in the range of 30 to 45 percent by weight; sodium benzoate present in the range of 3 to 10 percent by weight; potassium perchlorate present in the range of 20 to 40 percent by weight; and sodium nitrobenzoate salt present in the range of 2 to 12 percent by weight.
  • 117. The combustible charge as in claim 116 further including a gluconic acid salt present in the range of 2 to 15 percent by weight.