Hexafluoropropylene

Hexafluoropropylene is the fluoroalkene with the formula CF₃CF=CF₂. It is the perfluorocarbon counterpart to the hydrocarbon propylene. It is mainly used to produce copolymers with tetrafluoroethylene. Hexafluoropropylene is used as a chemical intermediate.^[1]

Hexafluoropropylene

Names
Preferred IUPAC name 1,1,2,3,3,3-Hexafluoroprop-1-ene
Other names Perfluoropropene, Perfluoropropylene, freon R 1216, halocarbon R 1216, fluorocarbon 1216
Identifiers
CAS Number	116-15-4 Y
3D model (JSmol)	Interactive image
ChemSpider	8001 Y
ECHA InfoCard	100.003.753
EC Number	204-127-4
PubChem CID	8302
RTECS number	UD0350000
UNII	TRW23XOS20 Y
UN number	1858
CompTox Dashboard (EPA)	DTXSID2026949
InChI InChI=1S/C3F6/c4-1(2(5)6)3(7,8)9 Y Key: HCDGVLDPFQMKDK-UHFFFAOYSA-N Y InChI=1/C3F6/c4-1(2(5)6)3(7,8)9 Key: HCDGVLDPFQMKDK-UHFFFAOYAV
SMILES F/C(F)=C(/F)C(F)(F)F
Properties
Chemical formula	C3F6
Molar mass	150.023 g·mol−1
Appearance	Colorless, odorless gas
Density	1.332 g/ml, liquid at 20 °C
Melting point	−153 °C (−243 °F; 120 K)
Boiling point	−28 °C (−18 °F; 245 K)
Solubility in water	Insoluble
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	Suffocation
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H332, H335, H351, H371, H373
Precautionary statements	P201, P202, P260, P261, P264, P270, P271, P281, P304+P312, P304+P340, P308+P313, P309+P311, P312, P314, P403+P233, P405, P410+P403, P501
NFPA 704 (fire diamond)	1 0 1
Flash point	Non flammable gas
Related compounds
Related alkenes; organofluorides	propylene; Hexafluoroacetone, Hexafluoro-2-propanol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Preparation

Hexafluoropropylene can be produced by pyrolysis of tetrafluoroethylene:^[1][2]

3 CF₂=CF₂ → 2 CF₃CF=CF₂

It can also be prepared from chlorodifluoromethane, or produced from various chlorofluorocarbons.^[3]