... 1,1,1,2-Tetrafluoroethane ,used in auto air condition,refrigerator,central air-condition.R-134a has been widly used as ... super-market freezer,reach-in-coolers,display cases, auto air-conditions,refrigerators,cenrel air conditions,commercial refrigeration,and also been used in ... ,No turbidGWP0.29OdorNo strange stenchLiquid Density,g/cm31.207 commercial refrigerator compressor r134a