| 摘要 |
PURPOSE: To obtain a mixed working fluid comprising trifluoroiodomethane and difluoromethane, etc., in a specific ratio, hardly having influence on an ozone layer of the stratosphere, having slight global waring action, capable of enlarging the width of a working fluid, useful as a heat pump, etc. CONSTITUTION: This mixed working fluid comprises (A) 35-80wt.% of trifuoroiodomethane and either or both of (B) <=40wt.% of a difluoromethane and (C) <=65wt.% of pentafluoroethane. The mixed working fluid is preferably obtained by mixing 25-50wt.% of an azeotropic mixture of 40-60wt.% of the component B and 60-40wt.% of the component C with 50-75wt.% of the component A. |
