Vinyl fluoride
Names | |
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Preferred IUPAC name
Fluoroethene | |
Other names
Vinylfluoride, Fluoroethylene, Monofluoroethylene, Vinyl fluoride monomer, VF, R 1141, UN 1860 (inhibited)
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Identifiers | |
3D model (JSmol)
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ChEBI | |
ChemSpider | |
ECHA InfoCard | 100.000.757 |
EC Number |
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KEGG | |
PubChem CID
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RTECS number |
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C2H3F | |
Molar mass | 46.04 g/mol |
Appearance | Colorless gas |
Odor | faint, ethereal[1] |
Density | 0.636 g/cm3 |
Melting point | −160.5 °C (−256.9 °F; 112.6 K) |
Boiling point | −72.2 °C (−98.0 °F; 201.0 K) |
Slightly soluble | |
Vapor pressure | 25.2 atm (370.4 psi) |
Hazards | |
EU classification (DSD) (outdated)
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Extremely flammable (F+) |
R-phrases (outdated) | R12 |
S-phrases (outdated) | S9, S16, S33 |
NFPA 704 (fire diamond) |
1
4
2 |
385 °C (725 °F; 658 K) | |
Explosive limits | 2.6 - 21.7% |
NIOSH (US health exposure limits): | |
PEL (Permissible)
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none[1] |
REL (Recommended)
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TWA 1 ppm C 5 ppm[1] |
IDLH (Immediate danger)
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N.D.[1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
what is ?) | (|
Infobox references | |
Vinyl fluoride is an organic halide with the chemical formula C2H3F. It is a colorless gas with a faint etherlike odor. It is used as the monomeric precursor to the fluoropolymer polyvinylfluoride.
Production[]
It was first prepared in 1901 by Frédéric Swarts, the Belgian chemist who was the first to prepare chlorofluorocarbons in 1892. Swarts used the reaction of zinc with 1,1-difluoro-2-bromoethane. It is produced industrially by two routes, one being the mercury-catalyzed reaction of acetylene and hydrogen fluoride:[2]
- HC≡CH + HF → CH2=CHF
It is also prepared from 1,1-chlorofluoroethane:
- CH3CHClF → CH2=CHF + HCl
Safety[]
Vinyl fluoride is classified as an IARC Group 2A carcinogen (likely to cause cancer in humans).
Additional data[]
Its critical point is at 54.8 °C (328 K) and 5.24 MPa. Its molecular dipole moment is 1.4 Debye and heat of vaporization is 361 kJ/kg.
See also[]
References[]
- ^ Jump up to: a b c d NIOSH Pocket Guide to Chemical Hazards. "#0660". National Institute for Occupational Safety and Health (NIOSH).
- ^ Günter Siegemund, Werner Schwertfeger, Andrew Feiring, Bruce Smart, Fred Behr, Herward Vogel, Blaine McKusick “Fluorine Compounds, Organic” Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2002. doi:10.1002/14356007.a11_349
External links[]
- Organofluorides
- Refrigerants
- IARC Group 2A carcinogens
- Vinyl compounds