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Structural formula of chlorotrifluoroethylene Ball-and-stick model of chlorotrifluoroethylene
CAS number 79-38-9 YesY
PubChem 6594
ChemSpider 6345 YesY
Jmol-3D images Image 1
Molecular formula C2ClF3
Molar mass 116.47 g mol−1
Appearance Colorless gas
Odor faint etheral odor
Density 1.54 g/cm3 at −60°C
Melting point −158.2 °C (−252.8 °F; 115.0 K)
Boiling point −27.8 °C (−18.0 °F; 245.3 K)
Solubility in water 4.01 g/100 mL
Solubility soluble in benzene, chloroform
Refractive index (nD) 1.38 (0 °C)
NFPA 704
Flammability code 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g., propane Health code 3: Short exposure could cause serious temporary or residual injury. E.g., chlorine gas Reactivity code 3: Capable of detonation or explosive decomposition but requires a strong initiating source, must be heated under confinement before initiation, reacts explosively with water, or will detonate if severely shocked. E.g., fluorine Special hazards (white): no codeNFPA 704 four-colored diamond
Explosive limits 24-40.3%
Related compounds
Related compounds Tetrafluoroethylene
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

Chlorotrifluoroethylene (CTFE) is a chlorofluorocarbon with chemical formula CF2CClF. It is commonly used as a refrigerant in cryogenic applications. CTFE has a carbon-carbon double bond and so can be polymerized to form polychlorotrifluoroethylene or copolymerized to produce the plastic ECTFE. PCTFE has the trade name Neoflon PCTFE from Daikin Industries in Japan, and used to be produced under the trade name Kel-F from 3M Corporation in Minnesota.[2]


Chlorotrifluoroethylene is produced commercially by the dechlorination of 1,1,2-trichloro-1,2,2-trifluoroethane with zinc in methanol.

In 2012, an estimated 1-10 million pounds were produced commercially in the United States.


  1. ^ Lide, David R. (1998). Handbook of Chemistry and Physics (87 ed.). Boca Raton, FL: CRC Press. pp. 3–126. ISBN 0-8493-0594-2. 
  2. ^ Aetna Plastics Corp. - Products. Services ... Solutions, Aetna Plastics Corp., pp. PCTFE / Kel–F® / Neoflon®, retrieved 3 February 2012