Dichlorofluoromethane

Dichlorofluoromethane

120px
Names
IUPAC name Dichlorofluoromethane
Other names Fluorodichloromethane, Monofluorodichloromethane, Dichloromonofluoromethane, Freon 21, Refrigerant 21, R 21, HCFC 21, Algofrene Type 5, Arcton 7, Halon 112, UN 1029, Genetron 21
Identifiers
CAS Number	75-43-4 Y
ChEMBL	ChEMBL116813 Y
ChemSpider	6130 Y
EC Number	200-869-8
Jmol 3D model	Interactive image
PubChem	6370
RTECS number	PA8400000
UNII	7GAO4CRJ0B Y
InChI InChI=1S/CHCl2F/c2-1(3)4/h1H Y Key: UMNKXPULIDJLSU-UHFFFAOYSA-N Y InChI=1/CHCl2F/c2-1(3)4/h1H Key: UMNKXPULIDJLSU-UHFFFAOYAU
SMILES ClC(Cl)F
Properties
Chemical formula	CHCl2F
Molar mass	102.92 g/mol
Appearance	Colorless gas
Odor	ether-like
Density	1.405 g/cm3 at 9 °C 1.366 kg/m3 at 25 °C
Melting point	−135 °C (−211 °F; 138 K)
Boiling point	8.92 °C (48.06 °F; 282.07 K)
Solubility in water	9.420 g/l at 30 °C
log P	1.55
Vapor pressure	160 kPa
Henry's law constant (kH)	0.19 mol.kg−1.bar−1
Vapor pressure	{{{value}}}
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is YN ?)
Infobox references

Dichlorofluoromethane or Freon 21 or R 21 is a halomethane or hydrochlorofluorocarbon. It is a colorless and odorless gas.

Its critical point is at 178.5 °C (451.7 K) and 5.17 MPa (51.7 bar). At temperatures from 5 K to 105 K it has one phase in the space group Pbca.

Uses

Dichlorofluoromethane was used as a propellant and refrigerant, but due to its ozone depletion it has been set to be phased out. It has ozone depletion potential 0.04. Production and consumption has been since 2004 reduced to 15% of level from 1989 and it is to be phased out in 2015 according to Montreal Protocol.

External links

• International Chemical Safety Card 1106
• Termochemistry data at chemnet.ru
• Entry at Air Gas Liquide Encyclopaedia