| abstract |
PROBLEM TO BE SOLVED: To provide a working medium for a refrigeration cycle capable of effectively suppressing or mitigating the disproportionation reaction even when the content of 1,1,2-trifluoroethylene (HFO1123) is relatively large. And a refrigeration cycle system using the same. A working medium for a refrigeration cycle contains at least 1,1,2-trifluoroethylene as a refrigerant component and disproportionately suppresses the disproportionation reaction of the 1,1,2-trifluoroethylene. As a oxidization inhibitor, a C3-C5 saturated hydrocarbon is contained. In this working medium for the refrigeration cycle, the content of 1,1,2-trifluoroethylene is 40% by mass or more when the total amount of the refrigerant component and the disproportionation inhibitor is 100% by mass, and saturation is achieved. The hydrocarbon content is in the range of 0.6 mass% to 10 mass%. [Selection figure] None |