| 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 n-butane and dichlorotrifluoroethane as essential components. CONSTITUTION:The objective mixture contains (A) n-butane and (B) dichlorotrifluoroethane preferably at a molar ratio of 1:99-50:50. In the case of necessitating the improvement in the thermal stability for the use under severe condition, the working medium is added with about 1wt.% of a stabilizer such as dimethyl phosphite or triphenoxyphosphine sulfide. |
