... 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 car ,super-market freezer,reach ... ,cenrel air conditions,commercial refrigeration,and also been used in areas such as medicine,cosmetics,pesticide Physical ... Density,g/cm31.207 Refrigerant Gas R134a for sale