1,1-Difluoroethylene

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1,1-Difluoroethylene
1,1-difluoroethylene.svg
Names
IUPAC name
1,1-Difluoroethene
Other names
Difluoro-1,1-ethylene; R-1132a; Halocarbon 1132 A; Freon 1132A; Vinylidene difluoride; Vinylidene fluoride[1]
Identifiers
Abbreviations VDF
75-38-7 YesY
ChemSpider 13836545
Jmol-3D images Image
Properties
C2H2F2
Molar mass 64.03 g·mol−1
Appearance Colorless gas[2]
Odor Slightly ethereal[1]
Density 2.89 kg/m3 (vapor, 0 °C)[2]
1.122 g/mL (liquid, -84 °C)[2]
Melting point −144 °C (−227 °F; 129 K)[2]
Boiling point −84 °C (−119 °F; 189 K)[2]
0.254 g/L[3]
Hazards
Main hazards Flammable[4]
380 °C (716 °F; 653 K)[1]
Explosive limits 5.5%-21.3%[5]
US health exposure limits (NIOSH):
none[5]
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

1,1-Difluoroethylene is a hydrofluoroolefin. Global production in 1999 was approximately 33,000 metric tons.[3] It is primarily used in the production of fluoropolymers such as polyvinylidene fluoride.

References[edit]