1,1-Dichloroethene
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1,1-Dichloroethene, commonly called 1,1-dichloroethylene or vinylidene chloride or 1,1-DCE, is an organochloride with the molecular formula C2H2Cl2. It is a colorless liquid with a sharp odor. Like most chlorocarbons, it is poorly soluble in water, but soluble in organic solvents. 1,1-DCE was the precursor to the original clingwrap, Saran, for food, but this application has been phased out.
Quick Facts Names, Identifiers ...
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Names | |||
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Preferred IUPAC name
1,1-Dichloroethene | |||
Other names
1,1-Dichloroethylene 1,1-DCE Vinylidene chloride Vinylidene dichloride Asymmetrical dichloroethene | |||
Identifiers | |||
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3D model (JSmol) |
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ChEBI | |||
ChemSpider |
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ECHA InfoCard | 100.000.786 | ||
KEGG |
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PubChem CID |
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UNII | |||
CompTox Dashboard (EPA) |
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Properties | |||
C2H2Cl2 | |||
Molar mass | 96.94 g/mol | ||
Density | 1.213 g/cm3 | ||
Melting point | −122 °C (−188 °F; 151 K) | ||
Boiling point | 32 °C (90 °F; 305 K) | ||
2,240mg/L (25°C) | |||
Vapor pressure | 500 mmHg (20°C)[1] | ||
-49.2·10−6 cm3/mol | |||
1.3 D | |||
Structure | |||
C2v | |||
Planar | |||
Hazards | |||
NFPA 704 (fire diamond) | |||
Flash point | −22.8 °C (−9.0 °F; 250.3 K) | ||
Explosive limits | 6.5–15.5%[1] | ||
Lethal dose or concentration (LD, LC): | |||
LDLo (lowest published) |
1500 mg/kg (rat) 194 mg/kg (mouse)[2] | ||
LCLo (lowest published) |
200 ppm (rat, 4.1 hr) 98 ppm (mouse, 22–23 hr) 1,000 ppm (rat, 2.4 hr)[2] | ||
NIOSH (US health exposure limits): | |||
PEL (Permissible) |
none[1] | ||
REL (Recommended) |
Ca[1] | ||
IDLH (Immediate danger) |
Ca [N.D.][1] | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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