Vinyl fluoride

Vinyl fluoride
IUPAC name Fluoroethene
Other names Vinylfluoride, Fluoroethylene, Monofluoroethylene, Vinyl fluoride monomer, VF, R 1141, UN 1860 (inhibited)
Identifiers
CAS number	75-02-5 Y
PubChem	6339
ChemSpider	6099 Y
EC number	200-832-6
KEGG	C19185 Y
ChEBI	CHEBI:51314 Y
RTECS number	YZ7351000
Jmol-3D images	Image 1
SMILES FC=C
InChI InChI=1S/C2H3F/c1-2-3/h2H,1H2 Y Key: XUCNUKMRBVNAPB-UHFFFAOYSA-N Y InChI=1/C2H3F/c1-2-3/h2H,1H2
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	4 1 2
Autoignition temperature	385 °C
Explosive limits	2.6 - 21.7 %
Y fluoride (verify) (what is: Y/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.

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

• Polyvinyl fluoride
• Vinyl chloride

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

• US Occupational Safety and Health Administration data sheet
• Vinyl fluoride data sheet, EnvironmentalChemistry.com
• Vinyl fluoride data sheet, airliquide.com
• MSDS Safety data at inchem.org
• Information about its carcinogenity