| 摘要 |
PURPOSE:To obtain a refrigerant suitable for low-temperature refrigerator, having slight or no influence on ozone layer at all, comprising 1,1,1- trifluoroethane. CONSTITUTION:1,1,1-Trifluoroethane (R-143a) is optionally mixed with about 0.01-5% based on weight of working fluid of a stabilizer such as an epoxide, a (thio)phosphite, a phoshine sulfide, a boron compound, a phenol, a nitroalkane, an acrylic acid ester or dioxane to give the objective refrigerant having -30 to -60 deg.C evaporation temperature in a refrigerator. |
