HFP Dimer


Hexafluoropropene dimer (HFP dimer) is an unsaturated perfluorocarbon - a highly branched perfluoroalkene manufactured by F2 Chemicals Ltd under the Fluorotherm D tradename. Its proper name (for the major isomer) is (E)-1,1,1,2,3,4,5,5,5-Nonafluoro-4-(trifluoromethyl)pent-2-ene.

It has seen much interest as a heat transfer agent, as it offers similar properties to perfluorocarbons, but with neglible GWP (<150).

CAS RN3709-71-5
Molecular weight300
Molecular formulaC6F12
ApppearanceClear, colourless liquid
Boiling point48°C
Pour point-80°C
Density1.6 g/ml
Specific hear1.13 kJ/kg/K
Heat of vaporisaton at boiling point98 kJ/K
Vapour pressure34.7 mBar
Resisitivity>1015
Dielectric strength24 kV/mm (50 Hz)
GHS symbolsGHS02; GHS07
GHS Signal WordWarning