Physical and Chemical data can be found on producers websites HCFC-22 (chloro-difluoro-methane)
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.
Joint Assessment of Commodity Chemicals No. 9
ECETOC, October 19, 1989
1-Chloro-1,2,2,2-tetrafluoroethane (chlorotetrafluoroethane), a non-flammable colourless gas at room temperature.
Joint Assessment of Commodity Chemicals No. 25
HCFC 124 (1-chloro-1,2,2,2- tetrafluoroethane) July 1994
1 ppm = 5.58 mg/m3 at 25ºC
1 mg/m³ = 0.179 ppm at 25ºC