Vinyl fluoride

Vinyl fluoride
Identifiers
CAS number 75-02-5 YesY
PubChem 6339
ChemSpider 6099 YesY
EC number 200-832-6
KEGG C19185 YesY
ChEBI CHEBI:51314 YesY
RTECS number YZ7351000
Jmol-3D images Image 1
Properties
Molecular formula C2H3F
Molar mass 46.04 g/mol
Appearance Colorless gas with a faint, ethereal odor
Density 2 g/cm3 (gas)

0.91 g/cm3 (liquid)

Melting point

-160.5 °C (-257 °F)

Boiling point

-72.2 °C (-98 °F)

Solubility in water Slightly soluble
Vapor pressure 25 500 kPa
Hazards
EU classification Extremely flammable (F+)
R-phrases R12
S-phrases S9, S16, S33
NFPA 704
NFPA 704.svg
4
1
2
Autoignition
temperature
385 °C
Explosive limits 2.6 - 21.7 %
 YesY fluoride (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
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.

Contents

Production

It was first prepared in 1901 by Frédéric Swarts, the Belgian chemist who was the first to prepare CFCs 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:[1]

HCCH + 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).

See also

References

  1. ^ 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

Additional data

Its critical point is at 54.8 °C (328 K) and 5.24 MPa. Molecular dipole moment is 1.4 Debye and heat of vaporization is 361 kJ/kg.

External links



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