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Vinyl fluoride: Difference between revisions

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Revision as of 08:14, 1 November 2011

Vinyl fluoride
Names
IUPAC name Fluoroethene
Other names Vinylfluoride, Fluoroethylene, Monofluoroethylene, Vinyl fluoride monomer, VF, R 1141, UN 1860 (inhibited)
Identifiers
CAS Number
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.000.757 Edit this at Wikidata
EC Number
  • 200-832-6
KEGG
PubChem CID
RTECS number
  • YZ7351000
CompTox Dashboard (EPA)
InChI
  • InChI=1S/C2H3F/c1-2-3/h2H,1H2Key: XUCNUKMRBVNAPB-UHFFFAOYSA-N
  • InChI=1/C2H3F/c1-2-3/h2H,1H2
SMILES
  • FC=C
Properties
Chemical formula C2H3F
Molar mass 46.04 g/mol
Appearance Colorless gas with a faint, ethereal odor
Density 2 g/cm (gas)

0.91 g/cm (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
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g. propaneInstability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorusSpecial hazards (white): no code
1 4 2
Explosive limits 2.6 - 21.7 %
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). checkY verify (what is  ?) Infobox references
Chemical compound

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 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:

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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