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Chlorotetrafluoroethane.png Ball-and-stick model of 2-chloro-1,1,1,2-tetrafluoroethane
CAS number 2837-89-0 N
PubChem 17822
ChemSpider 16841 YesY
Jmol-3D images Image 1
Molecular formula C2HClF4
Molar mass 136.475953
Boiling point −11.963 °C; 10.467 °F; 261.187 K[1]
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

1-Chloro-1,2,2,2-tetrafluoroethane, C2HClF4, also called R-124, is a hydrochlorofluorocarbon used as a refrigerant.

The chemical is also marketed for use as a gaseous fire suppressant. One trade name is FE-241. Protected areas are normally unoccupied requiring an automatic fire suppression system. Other clean agents are approved for occupied areas but are more expensive (see Dupont's FM-200heptafluoropropane.[2]


  1. ^ Ethane, 1-chloro-1,2,2,2-tetrafluoro- (R124) in Linstrom, P.J.; Mallard, W.G. (eds.) NIST Chemistry WebBook, NIST Standard Reference Database Number 69. National Institute of Standards and Technology, Gaithersburg MD. http://webbook.nist.gov (retrieved 10 May 2012)
  2. ^ http://www.fireboy-xintex.com/manuals/CG2-MA2-227-241CommonMnlE.pdf