Propellants, Fluorocarbon

Uses Prod, of chlorodifluoromethane (a refrigerant and propellant), fluorocarbon plastics extraction solvent for pharmaceuticals, nat. oils solvent for perfume analytical chemistry intermediate in prep, of dyes, drugs, pesticides fumigant insecticides ingred. in drugs and cosmetics preservative, solvent, flavor in pharmaceuticals in food-pkg. adhesives adjuvant for PC food-pkg. resins Features Sweet pleasant flavor... 

By far the largest use of hydrogen fluoride is in the manufacture of fluorocarbons which find a wide variety of uses including refrigerants, aerosol propellants and anaesthetics. Hydrogen fluoride is also used in the manufacture of synthetic cryolite, Na3AIFg, and the production of enriched uranium. 

Used industrially in the manufacture of fluorocarbons as a chemical intermediate in the manufacture of sulfur hexafluoride, chlorine trifluoride, bromine trifluoride uranium hexafluoride, molybdenum hexafluoride, perchloryl fluoride, and oxygen difluoride and as a rocket propellant. 

Uses Manufacture of fluorocarbon refrigerants, fluorocarbon plastics, and propellants solvent for natural products analytical chemistry cleansing agent soil fumigant insecticides preparation of chlorodifluoromethane, methyl fluoride, salicylaldehyde cleaning electronic circuit boards in fire extinguishers. 

Synonyms AI3-01708 Algofrene type 2 Arcton 6 Caswell No. 304 CCRIS 3501 Dilluorodi-chloromethane Electro-CF 12 EPA pesticide chemical code 000014 Eskimon 12 F 12 EC 12 Fluorocarbon 12 Freon 12 Freon F-12 Frigen 12 Genetron 12 Halon Halon 122 Isceon 122 Isotron 2 Kaiser chemicals 12 Ledon 12 Propellant 12 R 12 RCRA waste number U075 Refrigerant 12 Ucon 12 Ucon 12/halocarbon 12 UN 1028. 

Freon is a commercial trademark for a series of fluorocarbon products used in refrigeration and air-conditioning equipment, as aerosol propellants, blowing agents, fire extinguishing agents, and cleaning fluids and solvents. Many types contain chlorine as well as fluorine, and should be called chlorofluorocarbons (CFCs) [85,86]. 

Koch, E.-C., Metal-Fluorocarbon Pyrolants 111 Development and Application of Magnesium/Teflon/Viton (MTV), Propellants, Explosives, Pyrotechnics, Vol. 27,... 

Uses. Fluorinating agent incendiary igniter and propellant for rockets in nuclear reactor fuel processing pyrolysis inhibitor for fluorocarbon polymers... 

Uses. Manufacture of fluorocarbons for refrigerants, aerosol propellants, plastics purifying antibiotics solvent photographic processing dry cleaning... 

Chlorine trifluoride is used in rocket propellant incendiaries and in processing of nuclear reactor fuel. It also is used as a fluorinating agent and as an inhibitor of fluorocarbon polymer pyrolysis. 

N. Butz, C. Porte, H. Courrier, M.P. Krafft, T.F. Vandamme, Reverse water-in-fluorocarbon emulsions for use in pressurized metered-dose inhalers containing hydrofluor-oalkane propellants, Int. J. Pharm. 238 (2002) 257-269. 

Polyethylenes, fluorocarbons (Teflon and Kel-F) and chlorosulfonated polyethylene (Hypalon) are not affected by contact with explosives and propellants because of their chemical inertness. 

The copolymer of vinyl ferrocene (VF) and butadiene has also been reported in the literature for use as a binder for composite propellants. It does not require any burn-rate (BR) accelerator because of the presence of iron (Fe) in vinyl ferrocene which is converted to finely divided Fe203 (a well-known BR accelerator) during combustion. A few groups of scientists have also studied fluorocarbon polymers as binders for composite propellants because of their excellent compatibility with oxidizers and fuels coupled with high density. Accordingly, Kel-F elastomer (a copolymer of vinylidene fluoride and chlorotrifluoroethylene, trade name of 3M, USA) and Viton-A (copolymer of hexafluoropropylene and vinylidene fluoride, trade name of Du Pont, USA) have also been reported for this purpose. The structures of Kel-F 800 [Structure (4.13)] and Viton-A [Structure (4.14)] are ... 

Kay and Fust postulated the use of epoxy resin for inhibition of composite propellants [335] and as a consequence, epoxy resins were tried for the first time for the inhibition of HTPB-based composite propellants at Thiokol Corporation, USA. Subsequently, use of the amido-amine hardened modified bisphenol-A-based epoxy resin was reported as inhibitor for fluorocarbon-based composite propellants [336]. Epoxy resins are the most versatile resins for bonding applications for a variety of substrates. This is because of the following characteristics. 

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