| abstract |
The present invention is chlorodifluoromethane, 1,2,2,2-tetrafluoroethane, 1,1,2,2-tetrafluoroethane, 1-chloro-1,1,2,2-tetrafluoro Loethane, 1-chloro-1,2,2,2, tetrafluoroethane, 1,1,1,2,3,3,3-heptafluoropropane, 1,1,1,2,2, At least one of 3,3-heptafluoropropane, and perfluorocyclopropane and pentafluoroethane and 1,1,1-trifluoroethane; At least one of ethane, butane, isobutane, dimethylether, propylene, and difluoromethane and chlorodifluoromethane and pentafluoroethane; 1,1,1-trifluoroethane and 1,2,2,2-tetrafluoroethane, propane and pentafluoroethane, or 1,1,1-trifluoroethane and octafluoropropane and chlorodi Fluoromethane; And near-azeotropic mixtures of fluoroethane and 1,2,2,2-tetrafluoroethane and pentafluoroethane and their refrigerants. |