HFC-134a Environment

HFC-134a (1, 1, 1,2-tetrafluoroethane)

Ecological properties

Tetrafluoroethane, when released to the environment, partitions almost exclusively into the atmosphere. Degradation of tetrafluoroethane will occur mainly in the troposphere by reaction with hydroxyl radicals leading to trifluoroacetic acid, formic acid, hydrofluoric acid and carbon dioxide as ultimate degradation products. The overall atmospheric lifetime is 14 years. Tetrafluoroethane has a Global Warming Potential (GWP) of 1300 relative to CO2 at 100 years.

Joint Assessment of Commodity Chemicals No. 31
HFC-134a (1,1,1,2-tetrafluoroethane)
ECETOC, February 1995
IPCC, climate change 2001, third assessment report, Cambridge university press, 2001.

Ecotoxicological properties

Environmental testing of tetrafluoroethane has only been carried out on aquatic organisms. As tetrafluoroethane is a gas special procedures were employed to obtain solutions of the test substance and to prevent losses occurring during the test. All exposure concentrations were analytically verified.