The Chemours Company
Refrigerant mixtures comprising difluoromethane, pentafluoroethane, tetrafluoroethane, tetrafluoropropene, and carbon dioxide and uses thereof

Abstract:

In accordance with the present invention refrigerant compositions are disclosed. The compositions comprise HFC-32, HFC-125, HFO-1234yf, HFC-134a, and CO.sub.2. The refrigerant compositions are useful in processes to produce cooling and heating, in methods for replacing refrigerant R-R-22, and in refrigeration, air conditioning or heat pump systems. These inventive compositions are non-flammable and match cooling performance for R-22. The compositions as described herein have unexpected flammability properties.