Boron Compounds thereof

CCHEMISTRY METALLURGY C01Inorganic chemistry C01BNON-METALLIC ELEMENTS COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C

C01B35/00Boron Compounds thereof

C01B35/02Boron Borides C01B35/023Boron C01B35/026Higher boron hydrides C01B35/04Metal borides C01B35/06Boron halogen compounds C01B35/061Halides C01B35/063Tetrafluoboric acid; Salts thereof C01B35/065Tetrafluoboric acid C01B35/066Alkali metal tetrafluoborates C01B35/068Halogenated hydrides C01B35/08Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium C01B35/10Compounds containing boron and oxygen C01B35/1009having molecular-sieve properties C01B35/1018Carbonyl compounds derived from boron hydrides C01B35/1027Oxides C01B35/1036Boric anhydride C01B35/1045Oxyacids C01B35/1054Orthoboric acid C01B35/1063Preparation from boron ores or borates using acids or salts C01B35/1072by means of ammonia-carbon dioxide C01B35/1081Preparation by working up other natural sources C01B35/109Purification; Separation; Concentration C01B35/12Borates C01B35/121of alkali metal C01B35/122Sodium tetraborates; Hydrates thereof C01B35/123Preparation from boron ores or other borates C01B35/124Preparation by working up natural brines C01B35/125Purification; Concentration; Dehydration; Stabilisation; Other after-treatment C01B35/126of alkaline-earth metals, beryllium, aluminium or magnesium C01B35/127of heavy metals C01B35/128containing plural metal or metal and ammonium C01B35/14Compounds containing boron and nitrogen, phosphorus, sulfur, selenium or tellurium C01B35/143Phosphates C01B35/146Compounds containing boron and nitrogen