... ,1,1,1,2-Tetrafluoroethane ,used in auto air condition,refrigerator,central air-condition.R-134a has been widly used as ... ,commercial refrigeration,and also been used in areas such as medicine,cosmetics,pesticide Physical Properties Quality Specification Molecular formulaCH2FCF3Purity, %≥99. ... No turbidGWP0.29OdorNo strange stenchLiquid Density,g/cm31.207 commercial refrigerator compressor r134a