HCFC22 General Properties

General properties of HCFCs

Physical and Chemical data can be found on producers websites HCFC-22 (chloro-difluoro-methane)

Introduction

Chlorodifluoromethane is a non-flammable, colourless and nearly odourless gas under normal conditions. A large proportion is used as a chemical intermediate and therefore not emitted into the atmosphere. Other important uses are in refrigeration and in air conditioning systems; with present practice, most of the chlorodifluoromethane so used will eventually be emitted into the atmosphere.

Its moderate water solubility and low octanol/water partition coefficient indicate a negligible bioaccumulation potential. Contamination of water and food would not be expected from its physical and chemical properties and has not been reported.

Source
Joint Assessment of Commodity Chemicals No. 9
CHLORODIFLUOROMETHANE (HCFC-22)
ECETOC, October 19, 1989

Identity

Chemical structure :

Chemical Formula :

CHClF2

Common name :

Chlorodifluoromethane

Common synonyms :

  • Chlorofluorocarbon 22
  • Difluorochloromethane
  • Difluoromonochloromethane
  • FC 22
  • Flugene™ 22
  • Fluorocarbon 22
  • HCFC 22
  • HFA 22
  • Hydrochlorofluorocarbon 22
  • Hydrofluoroalkane22
  • methane,chlorodifluoro-
  • Monochlorodifluoromethane
  • Propellant 22
  • R 22
  • Refrigerant 22

Cas Registry Number :

75-45-6

Conversion factors:

1 ppm = 3.54 mg/m3
1 mg/ m3 = 0.282 ppm