| 摘要 |
PURPOSE:To obtain a mixed refrigerant useful for refrigerator, etc., having excellent cooling effects free from fear of destruction of an ozone layer, comprising tetrafluoroethane and trifluoromethane. CONSTITUTION:The mixed solvent comprising (A) preferably 60-95wt.% 1,1,1,2- tetrafluoroethane (CH2FCF3) and (B) preferably 5-40wt.% trifluoromethane (CHF3). |
