Editing Chlorofluorocarbon (section)

{{Short description|Class of organic compounds}}
{{Redirect|CFCs|other singular uses|CFC (disambiguation)}}
{{Use dmy dates|date=May 2024}}
{{Pollution sidebar|Air}}
'''Chlorofluorocarbons''' ('''CFCs''') and '''hydrochlorofluorocarbons''' ('''HCFCs''') are fully or partly [[Halogenation|halogenated]] [[hydrocarbon]]s that contain [[carbon]] (C), [[hydrogen]] (H), [[chlorine]] (Cl), and [[fluorine]] (F). They are produced as [[volatility (chemistry)|volatile]] derivatives of [[methane]], [[ethane]], and [[propane]].

The most common example of a CFC is [[dichlorodifluoromethane]] (R-12). R-12, also commonly called Freon, is used as a refrigerant. Many CFCs have been widely used as [[refrigerants]], [[propellants]] (in [[aerosol]] applications), [[gaseous fire suppression]] systems, and [[solvents]]. As a result of CFCs contributing to [[ozone depletion]] in the upper [[atmosphere]], the manufacture of such compounds has been phased out under the [[Montreal Protocol]], and they are being replaced with other products such as [[hydrofluorocarbon]]s (HFCs) and [[hydrofluoroolefin]]s (HFOs)<ref name="WhiteHouse">{{cite web | title=Climate Change | website=The White House | date=19 March 2021 | url=https://obamawhitehouse.archives.gov/energy/climate-change | archive-url=https://web.archive.org/web/20210319062556/https://obamawhitehouse.archives.gov/energy/climate-change | archive-date=19 March 2021 | url-status=live | access-date=11 April 2022}}</ref> including [[R-410A]], [[R-134a]] and [[2,3,3,3-Tetrafluoropropene|R-1234yf]].<ref>{{cite journal | last1 = Mironov | first1 = O. G. | title = Hydrocarbon pollution of the sea and its influence on marine organisms | journal = Helgoländer Wissenschaftliche Meeresuntersuchungen | volume = 17 | issue = 1–4 | pages = 335–339 | year = 1968 | doi = 10.1007/BF01611234 |bibcode = 1968HWM....17..335M | doi-access = free }}</ref><ref name="Darby">{{cite web | last=Darby | first=Megan | title=Ozone layer treaty could tackle super polluting HFCs | website=rtcc.org | date=19 August 2014 | url=http://www.rtcc.org/2014/07/15/ozone-layer-treaty-could-tackle-super-polluting-hfcs/ | archive-url=https://web.archive.org/web/20140819125632/http://www.rtcc.org/2014/07/15/ozone-layer-treaty-could-tackle-super-polluting-hfcs/ | archive-date=19 August 2014 | url-status=dead | access-date=11 April 2022}}</ref><ref>{{Cite web |title=Hydrofluoroolefins |url=https://www.gab-neumann.com/applications/$/Hydrofluoroolefins/201 |access-date=2023-12-12 |website=GAB Neumann GmbH}}</ref>