1,1-difluoroethane
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1,1-Difluoroethane, or DFE, is an organofluorine compound with the chemical formula CHF. This colorless gas is used as a refrigerant, where it is often listed as R-152a (refrigerant-152a) or HFC-152a (hydrofluorocarbon-152a). It is also 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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- Production
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- Environmental abundance
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- References
1,1-Difluoroethane, or DFE, is an organofluorine compound with the chemical formula CHF. This colorless gas is used as a refrigerant, where it is often listed as R-152a (refrigerant-152a) or HFC-152a (hydrofluorocarbon-152a). It is also 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).
==Production== 1,1-Difluoroethane is a synthetic substance that is produced by the mercury-catalyzed addition of hydrogen fluoride to acetylene: HCCH + 2 HF → CHCHF The intermediate in this process is vinyl fluoride (C2H3F), the monomeric precursor to polyvinyl fluoride.
Excerpted from Wikipedia’s “1,1-difluoroethane” article, available under the CC BY-SA 4.0 licence.