... Refrigerant gas R134a ,1,1,1,2-Tetrafluoroethane ,used in auto air condition,refrigerator,central air-condition.R-134a ... ,cenrel air conditions,commercial refrigeration,and also been used in areas such as medicine,cosmetics,pesticide Physical Properties Quality ... 05Evaporating Residue,ppm≤100ODP0AppearanceColourless,No turbidGWP0.29OdorNo strange stenchLiquid Density,g/cm31.207 r134a refrigerant price