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Chlorofluoromethane

Chlorofluoromethane

IUPAC name	Chlorofluoromethane
Other names	Fluorochloromethane, Chloro-fluoro-methane, Methylene chloride fluoride, Monochloromonofluoromethane, CFM, Khladon 31, Freon 31, CFC 31, R 31
Identifiers
CAS number	593-70-4
PubChem	11643
EINECS number	209-803-2
SMILES	C(F)Cl
InChI	InChI=1/CH2ClF/c2-1-3/h1H2
Properties
Molecular formula	CH₂ClF
Molar mass	68.48 g/mol
Appearance	Gas
Density	1.271 kg/m³ at 20 °C
Melting point	-133.0 °C
Boiling point	-9.1 °C
k_H	0.15 mol.kg^-1.bar^-1
Hazards
Main hazards	Carc. Cat. 3
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Chlorofluoromethane or Freon 31 is a gaseous mixed halomethane (hydrochlorofluorocarbon - HCFC).

Its crystal structure is monoclinic with space group P2₁ and lattice constants a = 6.7676, b = 4.1477, c = 5.0206 (.10^-1 nm), β = 108.205°.^[1]

In altitude of 22 km traces of chlorofluoromethane occur (148 ppt)^[2]

It is used as a refrigerant with ozone depletion potential 0.02.

References

^ Binbrek O. S., Torrie B. H., Swainson I. P. (2002). "Neutron powder-profile study of chlorofluoromethane". Acta Crystallogr C. 58 (11): 672-674. PMID 12415178. Retrieved on 2007-06-07.
^ C. Lippens et al (September 1981). "Atmospheric nitric acid and chlorofluoromethane 11 from interferometric spectra obtained at the Observatoire du Pic du Midi". J. Opt. 12 (5): 331-336(6). doi:10.1088/0150-536X/12/5/007. Retrieved on 2007-07-03.