Hydrofluorocarbons (HFCs) are synthetic organic compounds that contain fluorine and hydrogen atoms, and are the most common type of organofluorine compounds. Most are gases at room temperature and pressure. They are frequently used in air conditioning and as refrigerants; R-134a (1,1,1,2-tetrafluoroethane) is one of the most commonly used HFC refrigerants. In order to aid the recovery of the stratospheric ozone layer, HFCs were adopted to replace the more potent chlorofluorocarbons (CFCs), which were phased out from use by the Montreal Protocol, and hydrochlorofluorocarbons (HCFCs) which are presently being phased out.[1] HFCs replaced older chlorofluorocarbons such as R-12 and hydrochlorofluorocarbons such as R-21.[2] HFCs are also used in insulating foams, aerosol propellants, as solvents and for fire protection.
They may not harm the ozone layer as much as the compounds they replace, but they still contribute to global warming --- with some like trifluoromethane having 11,700 times the warming potential of carbon dioxide.[3] Their atmospheric concentrations and contribution to anthropogenic greenhouse gas emissions are rapidly increasing --- consumption rose from near zero in 1990 to 1.2 billion tons of carbon dioxide equivalent in 2010[4] --- causing international concern about their radiative forcing.
^Zaelke, Durwood; Borgford-Parnell, Nathan; Andersen., Stephen (11 January 2018). "Primer on HFCs" (PDF). Kristin Campbell, Xiaopu Sun, Dennis Clare,Claire Phillips, Stela Herschmann, Yuzhe PengLing, Alex Milgroom, Nancy J. Sherman. Institute for Governance & Sustainable Development (IGSD): 5. {{cite journal}}: Cite journal requires |journal= (help)
^
Milman, Oliver (22 September 2016). "100 countries push to phase out potentially disastrous greenhouse gas". The Guardian. London, UK. Retrieved 22 September 2016.
^Han, Wenfeng; Li, Ying; Tang, Haodong; Liu, Huazhang (2012). "Treatment of the potent greenhouse gas, CHF3—An overview". Journal of Fluorine Chemistry. 140: 7–16. doi:10.1016/j.jfluchem.2012.04.012.
^Toit, Louise du (2023-12-01), "Strengthening the Global Regulation of Hydrofluorocarbons under the Montreal Protocol", Reducing Emissions of Short-Lived Climate Pollutants, Brill Nijhoff, pp. 90–124, doi:10.1163/9789004684089_006, ISBN 978-90-04-68408-9, retrieved 2024-04-30
Hydrofluorocarbons (HFCs) are synthetic organic compounds that contain fluorine and hydrogen atoms, and are the most common type of organofluorine compounds...
Protocol, and they are being replaced with other products such as hydrofluorocarbons (HFCs) and hydrofluoroolefins (HFOs) including R-410A,R-134a and R-1234yf...
Fluoroethane (also known as ethyl fluoride) is a hydrofluorocarbon with the chemical formula C2H5F). It is a volatile derivative of ethane. It appears...
1,1,1,3,3-Pentafluoropropane (HFC-245fa) is a hydrofluorocarbon is a colorless gas used primarily for closed-cell spray foam insulation. HFC-245fa is...
by the trademark Freon), R-134a, and other chlorofluorocarbon or hydrofluorocarbon refrigerants in conventional stationary refrigeration and air conditioning...
widespread international prohibition. Hydrochlorofluorocarbons (HCFCs) and hydrofluorocarbons (HFCs) were designed as replacements; their synthesis consumes more...
and as aerosol propellants. These include chlorofluorocarbons and hydrofluorocarbons, both of which cause ozone depletion (although the latter much less...
international agreement to gradually reduce the consumption and production of hydrofluorocarbons (HFCs). It is a legally binding agreement designed to create rights...
plasma etch reactors. The compound is the lowest mass member of the hydrofluorocarbon (HFC) family, compounds which contain only hydrogen, fluorine, and...
Under the Kigali Amendment countries promised to reduce the use of hydrofluorocarbons (HFCs) by more than 80% over the next 30 years. By 27 December 2018...
been used as a refrigerant to replace chlorofluorocarbons (CFCs) and hydrofluorocarbons (HFCs) as it does not deplete the ozone as much. Cyclopentane requires...
the most common gas being 1,1-difluoroethane. It is often listed as hydrofluorocarbon-152a. Plasticizers used in hair spray include esters of citric acid...
replacement for R-12, R-22, R-134a and other chlorofluorocarbon or hydrofluorocarbon refrigerants in conventional stationary refrigeration and air conditioning...
trifluoromethane, is the chemical compound with the formula CHF3. It is a hydrofluorocarbon as well as being a part of the haloforms, a class of compounds with...
R134, R 134, or R-134 may refer to: R-134 (hydrofluorocarbon), or 1,1,2,2-tetrafluoroethane, a chemical R134 (star), a star in the Tarantula Nebula; see...
fluorine. They are divided into several types, the main of those are hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulphur hexafluoride (SF6). They...
small concentrations (parts per trillion) of chlorofluorocarbon, hydrofluorocarbon, and perfluorocarbon gases in the atmosphere is responsible for about...
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