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Different types of gas

Different Types of Refrigerant Gas:

Refrigerant gas is a chemical product used in refrigerators, freezers, air conditioners and heating, ventilating and air conditioning units(HVAC).These gases, which have very low evaporation points, are condensed under pressure to chill the air. Through a process of repeatedly evaporating and condensing the gasses, heat is pulled out of the air and the temperature inside the room or unit is reduced. Different types of refrigerant gases include chlorofluorocarbon (CFC), hydrochlorofluorocarbon (HCFC), hydrofluorocarbon(HFC).perfluorocarbon (PFC), and blends made from ammonia and carbon dioxide.

The first refrigerators built from the 1800’s until the 1920’s primarily used toxic gases such as ammonia (NH3), methyl chloride (CH3Cl), and sulfur dioxide (SO2). Unfortunately, the units occasionally leaked and caused several deaths, which prompted the refrigeration industry to put forth a concerted effort to find a safer refrigerant gas. The result was the discovery of chlorofluorocarbon (CFC) gas, which was a mixture of chlorine,fluorine  and carbons.

Freon® became the trademark name for a CFC gas that was primarily used as a refrigerant. This gas was colorless, odorless, nonflammable and non-toxic, and soon became the predominant refrigerant gas.