1,1,2,2-Tetrafluoroethane (also called R-134 or HFC-134) is a hydrofluorocarbon, a fluorinated alkane. It is an isomer of the more-used 1,1,1,2-tetrafluoroethane (R-134a). It is used as a foam expansion agent and heat transfer fluid.[1]
Notes and References
"1,1,2,2-Tetrafluoroethane (HFC-134) (2018)", Toxicology and Industrial Health, 35, #3 (March 2019), pp. 196-203, .