2,2-Dichloro-1,1,1-trifluoroethane

2,2-Dichloro-1,1,1-trifluoroethane or HCFC-123 is considered as an alternative to CFC-11 in low pressure refrigeration systems, and should not be used in firefighting, foam blowing processes, and solvent applications.

Its ozone depletion potential is ODP = 0.02, and global warming potential is GWP = 0.02. Phase-outing of HCFC-123 has begun in 2004 and should be finished in 2030.

Isomers are 1,2-dichloro-1,1,2-trifluoroethane (R-123a) with CAS 354-23-4 and 1,1-dichloro-1,2,2-trifluoroethane (R-123b) with CAS 812-04-4.