Difluoromethane

August 18th, 2008 by

Difluoromethane

IUPAC name
Difluoromethane
Other names
Methylene fluoride, Methylene difluoride, Carbon fluoride hydride, HFC 32, R 32, FC 32, Freon 32, UN 3252
Identifiers
CAS number
PubChem
6345
EINECS number
200-839-4
RTECS number
PA8537500
SMILES
 
C(F)F
InChI
 
1/CH2F2/c2-1-3/h1H2
Properties
Molecular formula
CH2F2
Molar mass
52.02 g/mol
Appearance
Colorless gas
Density
2.72 kg/m3 at 15 °C (59 °F)
2.163 kg/m3 at 21.1 °C (70 °F)
Melting point
−136 °C
Boiling point
−51.6 °C
Vapor pressure
1518.92 kPa at 21.1 °C (70 °F)
Hazards
MSDS
MSDS at Oxford University
EU classification
Extremely flammable (F+)
NFPA 704

4
1
1
 
R-phrases
R12
S-phrases
S9, S16, S23
Autoignition
temperature
648 °C
Except where noted [...]

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