... as one of the main refrigerant working substances to substitute Refrigerant gas R134a ,1,1,1,2-Tetrafluoroethane ,used in auto air condition,refrigerator ... ,central air-condition.R-134a has been widly used as refrigerant in ... ,No turbidGWP0.29OdorNo strange stenchLiquid Density,g/cm31.207 r134a refrigerant price