COMPOSITION OF ENVIRONMENTAL REFRIGERANT MIXTURE

摘要

Provided is an environmental-friendly refrigerant mixture composition which can replace refrigerant R503 and R404A and can be applied to the refrigerator system using a R503 or R404A refrigerant only by the control of the amount of a refrigerant without the change of plan of the system. The refrigerant mixture composition comprises 35-45 wt% of propylene (R1270); 20-30 wt% of propane (R290); 20-30 wt% of 1,1-difluoroethane (R152a); and 5-15 wt% of pentafluoroethane (R125). Preferably the composition comprises further a refrigerator oil.