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Chlorofluoromethane
Fluorochloromethane Chloro-fluoro-methane Methylene chloride fluoride Monochloromonofluoromethane CFM Khladon 31 Freon 31 HCFC 31 R 31
Chlorofluoromethane or Freon 31 is the hydrochlorofluorocarbon (HCFC) with the formula CH2ClF. It is a colorless, odorless, flammable gas.
Uses
Pyrolysis of a mixture of dichlorofluoromethane and chlorofluoromethane gives hexafluorobenzene: :3 CHCl2F + 3 CH2ClF → C6F6 + 9 HCl It was used as a refrigerant and has an ozone depletion potential of 0.02.
Additional data
Its crystal structure is monoclinic with space group P21 and lattice constants a = 6.7676, b = 4.1477, c = 5.0206 (0.10−1 nm), β = 108.205°.
At an altitude of 22 km, traces of chlorofluoromethane occur (148 ppt). | display-authors=etal}}
References
References
- US EPA, OAR. (2015-07-22). "Phaseout of Class II Ozone-Depleting Substances".
- "Bromine Compounds".
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