... .75 Critical pressure , Mpa:4.97 Refrigerant Gas(R-22)Quality standard:GradeTFE raw materialRefrigantAppearanceColorless,not turbidColorless,no turbidOdorOdorlessOdorlessPurity≥% ... chemical properties , and not corrode metals, chlorodifluoromethane is used as pure or in mixture for refrigeration (medium-high ... polystyrene and polyurethane foams.Packing:13.6kg ,22.7kg,40kg ,400kg,800kg,950kg,ISOtank.