WORKING FLUID FOR HEAT CYCLE, A PROCESS FOR ITS PREPARATION, COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM

摘要

To provide a process for preparing a working fluid for heat cycle having a low global warming potential, which can replace R410A, a working fluid for heat cycle obtainable by the process, a composition for a heat cycle system comprising the working fluid, and a heat cycle system employing the composition.;A process for preparing a working fluid for heat cycle, which comprises trifluoroethylene and 2,3,3,3-tetrafluoropropene, wherein the total proportion of trifluoroethylene and 2,3,3,3-tetrafluoropropene based on the entire amount of the working fluid is from 70 to 100 mass%, and the proportion of trifluoroethylene based on the total amount of trifluoroethylene and 2,3,3,3-tetrafluoropropene is from 35 to 95 mass%, the process comprising mixing trifluoroethylene and 2,3,3,3-tetrafluoropropene, a working fluid obtainable by the process, a composition for a heat cycle system comprising the working fluid for heat cycle, and a heat cycle system employing the composition.