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Chemical compound / From Wikipedia, the free encyclopedia
1,1-Difluoroethylene also known as vinylidene fluoride, is a compound of the haloalkenes group. It is colorless gas that can be easily set on fire at typical temperature and pressure[5]. it 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.
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Quick Facts Names, Identifiers ...
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Names | |||
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IUPAC name
1,1-Difluoroethene | |||
Other names
Difluoro-1,1-ethylene; R-1132a; Halocarbon 1132 A; Freon 1132A; Vinylidene difluoride; Vinylidene fluoride[1] | |||
Identifiers | |||
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3D model (JSmol) |
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Abbreviations | VDF | ||
ChemSpider | |||
UNII | |||
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Properties | |||
C2H2F2 | |||
Molar mass | 64.035 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] | |||
Vapor pressure | 35.2 atm (20°C)[4] | ||
Hazards | |||
Occupational safety and health (OHS/OSH): | |||
Main hazards |
Flammable[4] | ||
380 °C (716 °F; 653 K)[1] | |||
Explosive limits | 5.5%-21.3%[4] | ||
NIOSH (US health exposure limits): | |||
PEL (Permissible) |
none[4] | ||
REL (Recommended) |
TWA 1 ppm C 5 ppm[4] | ||
IDLH (Immediate danger) |
N.D.[4] | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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