| abstract |
PURPOSE: To provide the title mixture which exhibits excellent refrigerating and heating efficiency, and which comprises a dichlorotrifluoroethane and a chlorotetrafluoroethane. n CONSTITUTION: A dichlorotrifluoroethane (e.g., 1,1-dichloro-2,2,2-trifluoroethane) is mixed with a chlorotetrafluoroethane (e.g., chloro-1,2,2,2-tetrafluoroethane) in a molar ratio of 50:50W99:1 to prepare a working medium mixture. Optionally added to 100pts.wt. working medium mixture is about 1pt.wt. heat stabilizer (e.g., dimethyl phosphite). n COPYRIGHT: (C)1988,JPO&Japio |