Non-azeotropic mixtures of difluoromethane trifluoromethane and 1,1,1,2-tetrafluoroethane and their application as refrigerants

摘要

A non-azeotropic mixt. comprises 10-22% difluoromethane (HFC 32), 4-8% trifluoromethane (HFC 23) and 72-82% 1,1,1,2-tetrafluoroethane (HFC-134a). Also claimed is the use as a refrigerant for refrigeration or air conditioning.