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), as a replacement for certain 3M fluids.
| CAS RN | 3709-71-5 |
| Molecular weight | 300 |
| Molecular formula | C6F12 |
| Apppearance | Clear, colourless liquid |
| Boiling point | 48°C |
| Pour point | -80°C |
| Density | 1.6 g/ml |
| Specific hear | 1.13 kJ/kg/K |
| Heat of vaporisaton at boiling point | 98 kJ/K |
| Vapour pressure | 34.7 mBar |
| Resisitivity | >1015 |
| Dielectric strength | 24 kV/mm (50 Hz) |
| GHS symbols | GHS02; GHS07 |
| GHS Signal Word | Warning |