A fluorocarbon that is replacing chlorofluorocarbon as a refrigerant and propellant in aerosol cans; considered to be somewhat less destructive to the atmosphere.
A compound consisting of hydrogen, chlorine, fluorine, and carbon. The HCFCs are one class of chemicals being used to replace the CFCs. They contain chlorine and thus deplete stratospheric ozone, but to a much lesser extent than CFCs. HCFCs have ODPs ranging from 0.014 to 0.11. Production of HCFCs with the highest ODPs will be phased out first, followed by other HCFCs.
A chemical compound containing only hydrogen, chlorine, fluorine, and carbon. Hydrochlorofluorocarbons are less damaging to the ozone layer than chlorofluorocarbons. These compounds (HCFCs) are considered as an interim replacement for CFCs.
An organic chemical composed of hydrogen, chlorine, fluorine, and carbon atoms. These chemicals are less stable than pure CFCs, thereby having generally lower ODPs.
A refrigerant used in display cases and warehouse storage facilities.
One of a class of compounds used primarily as a CFC substitute. Work on CFC alternatives began in the late 1970s after the first warnings of CFC damage to stratospheric ozone. By adding hydrogen to the chemical formulation, chemists made CFCs less stable in the lower atmosphere enabling them to break down before reaching the ozone layer. However, HCFCs do release chlorine and have contributed more to atmospheric chlorine buildup than originally predicted. Development of non-chlorine based chemical compounds as a substitute for CFCs and HCFCs continues.
A class of chemicals being used to replace CFCs since they deplete stratospheric ozone to a much lesser extent than CFCs. These have ODPs ranging from 0.01 to 0.1. The production of these chemicals is being gradually phased out, with those with the highest ODPs going first. These will be replaced by HFCs or some other types of chemicals.
A compound containing chlorine but since hydrogen is present, the risk of damaging the ozone layer is low.
A class of refrigerants. Generally refers to Halogenated Chlorofluorocarbon family of refrigerants.
