... is internationally recognized as one of the main refrigerant working substances to substitute Refrigerant gas R134a ,1,1,1,2-Tetrafluoroethane ,used ... central air-condition.R-134a has been widly used as refrigerant in car ,super-market freezer,reach-in-coolers,display cases, auto ... 100ODP0AppearanceColourless,No turbidGWP0.29OdorNo strange stenchLiquid Density,g/cm31.207 Refrigerant Gas R134a for sale