| abstract |
The present invention relates to a non-flammable environment-friendly refrigerant which may be used for a vehicle air conditioner, a home refrigerator, a water purifier, a commercial refrigerator, etc., may be used so as to be safe for a user by being non-flammable, and may be used as a drop-in type without having to refurbish or alter a refrigerating mechanism using a conventional CFC-12, HFC-134a and HFO-1234yf refrigeration cycle refrigerant. The non-flammable environment-friendly refrigerant comprises 75-86 parts by volume of trifluoroiodomethane (CF3I), 14-25 parts by volume of propane (C3H8), and 0.1-0.5 parts by volume of a hexamethyl silicone oil, or comprises a further addition of isobutene (C4H10). |