FC-75

FC-75
Names
IUPAC name
2,2,3,3,4,4,5-heptafluoro-5-(1,1,2,2,3,3,4,4,4-nonafluorobutyl)tetrahydrofuran
Other names
Fluorinert FC-75,
Perfluoro-compound FC-75,
Perfluoro-2-n-butyl THF,
Perfluoro(butyltetrahydrofuran)
Identifiers
Abbreviations PFBTHF
335-36-4 Yes
EC number 206-389-5
Jmol-3D images Image
PubChem 78976
Properties
C8F16O
Molar mass 416.06
Melting point −88 °C (−126 °F; 185 K)
Boiling point 102 °C (216 °F; 375 K)
Insoluble
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

FC-75 is a fluorocarbon derivative of tetrahydrofuran with the chemical formula C8F16O. It is practically insoluble in water.

It is one of the 3M Fluorinert fluids. It is used as an inert coolant fluid in electronics and other applications, and as a solvent. FC-75 can be synthesized by the same electrochemical fluorination process used to produce PFOA.[1] However, other perfluorinated ether isomers will also result.

H(CH2)7COCl + HF → H(CH2)7COF + C7H16 + 2C8F16O + HCl + H2

A similar fluorocarbon-based coolant and solvent is perfluorohexane.

References

  1. Savu, P (1994). "Fluorinated Higher Carboxylic Acids". Kirk-Othmer Encyclopedia of Chemical Terminology. John Wiley & Sons, Inc. doi:10.1002/0471238961.0612211519012221.a01.