Hexafluoroisobutylene is a specialty monomer useful for coatings and fluoropolymers. It is supplied by DuPont as a colorless, pressurized liquid.
Sales Specification
| Property | Limit |
| Hexafluoroisobutylene, wt. % | 99.5 min. |
| Hexafluoropropene, wt % | 0.5 max. |
| Acetone/hexafluoroisovalero lactone, wt % | 0.3 max. |
| H/CH3-substituted hexafluoroisobutylene, wt % | 0.5 max. |
| Trifluoromethane, wt % | 0.05 max. |
| Allene/pentadiene isomers, wt % | 0.2 max. |
| Oxygen, wt % | 0.02 max. |
| Perfluoroisobutylene, wt % | not detected |
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Uses
Hexafluroisobutylene (HFIB) is a specialty monomer used in coatings and fluoropolymers, to produce materials with high temperature and chemical stability and good optical properties. In addition, HFIB can be used for blowing agents and refrigerants, and for specialty chemical applications.
Typical Physical Properties*
| Property | Value |
| CAS Name | 3,3,3-Trifluoro-2(trifluoromethyl)-1-propene |
| CAS Number | 382-10-5 |
| Molecular formula | C4H2F6 |
| Molecular weight | 164 |
| Boiling Point | 14.5 C (58.1 F) |
| Melting Point | -111 C (232 F) |
| Volatiles, wt % | 100 |
| Form | Pressurized liquid |
| Critical Temperature | 156 C (313 F) |
| Liquid Density | r(g/mL) = 0.614 + 212/T(K) (0-33 C [32-91 F]) |
| Vapor Pressure | log P (psia) = 5.574 - 1270/T(K) (14.5-72 C [58-162 F]) |
| Solubility in Water | 2.3 ´ 10-4 g/g water at 23 C (73 F) |
| *This table gives typical properties based on historical production performance. DuPont does not make any
express or implied warranty that these products will continue to have these typical properties. |
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Handling
Hexafluoroisobutylene is supplied as a pressurized liquid, which is toxic by inhalation, and may cause irritation of the nose, throat and lungs. Protect against respiratory exposure. Skin contact may cause frostbite; wear appropriate gloves. Refer to the MSDS for additional handling information.
Packages
HFIB is available in pressurized cylinders of 0.45kg (1lb) and 1000kg (2.2M lb) net.
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