HCFC142b 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

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HCFC-142b (1-chloro-1,1-difluoroethane)

Identity

Chemical structure :

Chemical Formula :

CCIF2CH3

Common name :

chlorodifluoroethane

IUPAC name :

1-chloro-1,1-difluoroethane

Common synonyms :

  • HCFC-142b
  • HFA-142b

Cas Registry Number :

75-68-3

Einecs Number :

200-891-8