| 摘要 |
PURPOSE:To obtain the title novel mixture having excellent refrigeration and heating efficiency, usable for refrigerator, heat pump, etc., and having excellent thermal stability, by using ehane, dichlorodifluoromethane and difluoroethane as essential components. CONSTITUTION:The objective mixture contains (A) ehane, (B) dichlorodifluoromethane and (C) 1,1-difluoroethane as essential components. The molar ratio of the mixture of the components B and C to the component A is preferably 1:99-40:60 and the weight ratio of B:C is preferably 73.8:26.2. |
