| 摘要 |
PURPOSE:To provide the title mixture which exhibits excellent refrigerating and heating efficiency, and which comprises a dichlorotrifluoroethane and a dichlorodifluoroethane. CONSTITUTION:A dichlorotrifluoroethane (e.g., 1,1-dichloro-2,2,2-trifluoroethane) is mixed with a dichlorodifluoroethane (e.g., 1,2-dichloro-1,2-difluoroethane) in a molar ratio of 1:99-99:1 to prepare a working medium mixture. Optionally added to 100pts.wt. working medium mixture is about 1pt.wt. heat stabilizer (e.g., dimethyl phosphite). |
