Perfluoro-1,3-dimethylcyclohexane

Perfluoro-1,3-dimethylcyclohexane is a fluorocarbon liquid—a perfluorinated derivative of the hydrocarbon 1,3-dimethylcyclohexane. It is chemically and biologically inert.

Perfluoro-1,3-dimethylcyclohexane
Names
IUPAC name
1,1,2,2,3,3,4,5,5,6-Decafluoro-4,6-bis(trifluoromethyl)cyclohexane
Other names
Flutec PP3
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.005.807
EC Number
  • 206-386-9
UNII
Properties
C8F16
Molar mass 400.062 g·mol−1
Appearance Clear, colorless liquid
Density 1.828 g/mL
Melting point −70 °C (−94 °F; 203 K)
Boiling point 102 °C (216 °F; 375 K)
10 ppm
Hazards
Main hazards None
Flash point None
None
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Manufacture

Perfluoro-1,3-dimethylcyclohexane can be manufactured by the Fowler process, which involves moderating the action of elemental fluorine with cobalt fluoride in the gas phase from meta-xylene. This is preferred as the starting material over 1,3-dimethylcyclohexane as less fluorine is required.[1]

Properties

Perfluoro-1,3-dimethylcyclohexane is chemically inert and thermally stable (to over 400 °C). It is non-toxic.[2]

It is a clear, colorless liquid, with a relatively high density, low viscosity and low surface tension that will rapidly evaporate. It is a relatively good solvent for gases, but a poor solvent for solids and liquids.[3]

In common with other cyclic perfluorocarbons, perfluoro-1,3-dimethylcyclohexane can be detected at extremely low concentrations, making it ideal as a tracer.[4]

Applications

References
  1. Sandford G (2003). "Perfluoroalkanes". Tetrahedron. 59: 437–454. doi:10.1016/s0040-4020(02)01568-5.
  2. "FLUTEC PP3". F2 Chemicals.
  3. "Solubility in Liquids" (PDF). F2 Chemicals.
  4. Begley P1, Foulger B, Simmonds P. (1988). "Femtogram detection of perfluorocarbon tracers using capillary gas chromatography-electron-capture negative ion chemical ionisation mass spectrometry". J. Chromatogr. 445 (1): 119–128. doi:10.1016/s0021-9673(01)84513-1.CS1 maint: uses authors parameter (link)
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