| Identification | Back Directory | [Name]
Hexafluoropropene trimer | [CAS]
6792-31-0 | [Synonyms]
uoropropene trimer, 97%
Perfluoropropene[trimer]
HEXAFLUOROPROPENE TRIMER
Hexafluoropropylene trimer
Hexafluoropropene trimer 97%
TRIMERS OF HEXAFLUOROPROPENE
PERFLUOROPROPENE TRIMER MIXTURE OF ISO&
Hexafluoropropene trimer(isomeric mixture)
HEXAFLUOROPROPENE TRIMER (MIXTURE OF ISOMERS) | [EINECS(EC#)]
633-258-3 | [Molecular Formula]
C9F18 | [MDL Number]
MFCD00043821 | [MOL File]
6792-31-0.mol | [Molecular Weight]
450.07 |
| Chemical Properties | Back Directory | [Boiling point ]
110-115 °C(lit.)
| [density ]
1.83 g/mL at 25 °C(lit.)
| [Fp ]
75 °F
| [storage temp. ]
Sealed in dry,2-8°C | [form ]
liquid | [Specific Gravity]
1.830 | [Appearance]
Colorless to light yellow Liquid | [InChI]
InChI=1S/C3F6/c4-1(2(5)6)3(7,8)9 | [InChIKey]
VJRSWIKVCUMTFK-UHFFFAOYSA-N | [SMILES]
C(F)(=C(F)F)C(F)(F)F | [EPA Substance Registry System]
Hexafluoropropene Trimer (6792-31-0) |
| Hazard Information | Back Directory | [Description]
Hexafluoropropylene Trimer (HFPT, 6792-31-0), also known as HFP Trimer, exists in three structural isomers: T-1, T-2, and T-3, with a boiling point of approximately 110–120°C. This high-performance fluorinated material combines chemical inertness, good thermal stability, and excellent dielectric properties, finding broad applications in thermal management and surface treatment.
| [Chemical Properties]
| Parameter |
Value |
| Physical Appearance |
Colourless, transparent, oily liquid; odourless; free from suspended impurities and precipitates |
| Liquid Density (25°C) |
1.83 g/mL |
| Boiling Point (Atmospheric Pressure) |
110–120 °C |
| Melting Point |
–68 °C; does not solidify at low temperatures, suitable for low-temperature applications |
| Flash Point |
No flash point; non-flammable, not classified as a flammable or explosive substance |
| Refractive Index (25°C) |
1.273 |
| Saturated Vapor Pressure (25°C) |
9.6 mbar, low volatility loss |
| Surface Tension (25°C) |
15 mN/m; excellent wetting and penetration properties |
| Viscosity (25°C) |
1.3321 cSt |
| Solubility |
Insoluble in water, soluble in perfluorinated solvents; poor miscibility with halogenated hydrocarbons and conventional organic solvents |
| Chemical Stability |
Resistant to strong acids, strong alkalis and strong oxidising agents; resistant to high temperatures; does not decompose at room temperature; does not corrode metals |
| Environmental Indicators |
ODP = 0, GWP ≈ 120; complies with environmental substitution standards |
| Dielectric Strength (3mm) |
>32 kV |
| Dielectric Constant (12 GHz) |
2.07 |
| Volume Resistivity |
≥1×10¹⁴ Ω·mm |
| Insulation Properties |
High insulation, low dielectric loss; suitable for electronic and electrical insulation and cooling applications |
| [Characteristics]
Hexafluoropropylene trimer is a high-end perfluoroalkene compound produced through the catalytic isomerisation of hexafluoropropylene monomers, followed by precision distillation and purification. The industrial product primarily contains the highly reactive T3 isomer and is available in two main grades: industrial grade and electronic grade.
Hexafluoropropylene trimer offers a range of comprehensive advantages, including zero ozone depletion, low GWP environmental properties, absolute non-flammability, high insulation, exceptional stability and low surface tension, making it the ideal replacement for traditional, highly polluting, high-risk, high-global-warming-potential fluorinated solvents and cooling media. | [Uses]
Hexafluoropropene, trimer may be used in the preparation of photochromic spiroindolinonaphthoxazine derivative. It may be used in the preparation of 2-trifluoromethyl-3-heptadifluoroisopropyl-2-perfluoropentene-4-(N′,N′-dimethylamino propyl) imino(I). | [General Description]
Spectra of three isomeric trimers of hexafluoropropene have been investigated. It reacts with primary amines, via indirect substitution of fluorine atoms, to form the corresponding enamines and enimines. | [Synthesis]
Hexafluoropropene (HFP) can undergo oligomerisation to form hexafluoropropene dimers (HFPD) and trimers (HFPT). The liquid-phase method is the most widely used approach for the oligomerisation (trimerisation) of HFP. In a polar, non-protonic solvent, a nucleophilic catalyst is used to initiate the trimerisation of HFP to form hexafluoropropene trimer (HFPT, 6792-31-0). The optimal reaction conditions are 50 °C, 1.5 h, 0.4 mmol of the [C?DABCO][SCN] catalyst, a pressure of 0.5 MPa, and 10 mL of DMF as the solvent. The HFP conversion was close to 100 per cent. The resulting HFPT primarily comprised perfluoro-2,4-dimethyl-3-heptene (C9F18, T1, including the E and Z isomers), perfluoro-4-methyl-3-isopropyl-2-penten (C9F18, T2) and perfluoro-2,4-dimethyl-3-ethyl-2-penten (C9F18, T3), as well as a small amount of dimers [3].
![Synthesis of Hexafluoropropene trimer: [C8DABCO][SCN]-catalyzed HFP trimerization reaction pathway](/NewsImg/2026-09-14/6392497876530855998244250.png "Synthesis of Hexafluoropropene trimer: [C8DABCO][SCN]-catalyzed HFP trimerization reaction pathway")
| [References]
[1] Makarov, K. N., et al. "Hexafluoropropene trimer. Synthesis and properties of functional derivatives." Journal of Fluorine Chemistry 10.4 (1977): 323-327.
[2] Hayakawa, Yoshio, Masakazu Nishida, and Taizo Ono. "Novel polystyrene bearing highly branched hexafluoropropene trimer pendants." Polymer bulletin 67.5 (2011): 805-814. |
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