1,1-Difluoroethane

Uncommon card · No. 91049

1,1-Difluoroethane, or DFE, is a hydrofluorocarbon with the chemical formula C2H4F2 or CH3CHF2. This colorless gas is primarily used as a propellant and foam blowing agent as well as a component in a refrigerant, where it is often listed as R-152a (refrigerant-152a) or HFC-152a (hydrofluorocarbon-152a). It is predominantly used as a propellant for aerosol sprays and in gas duster products. As an alternative to chlorofluorocarbons, it has a global warming potential of 120-140, lower than other hydrofluorocarbons, and a shorter atmospheric lifetime (1.4 years).

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