1,1-Dichloroethene

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.

1,1-Dichloroethene
Names
Preferred IUPAC name
1,1-Dichloroethene
Other names
1,1-Dichloroethylene
1,1-DCE
Vinylidene chloride
Vinylidene dichloride
Asymmetrical dichloroethene
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.000.786
KEGG
UNII
  • InChI=1S/C2H2Cl2/c1-2(3)4/h1H2 N
    Key: LGXVIGDEPROXKC-UHFFFAOYSA-N N
  • ClC(Cl)=C
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)
-49.2·10−6 cm3/mol
1.3 D
Structure
C2v
Planar
Hazards
NFPA 704 (fire diamond)
2
4
2
Flash point −22.8 °C (−9.0 °F; 250.3 K)
Explosive limits 6.5–15.5%
Lethal dose or concentration (LD, LC):
16,000 ppm (rat, 4 hr)
17,300 ppm (mouse, 2 hr)
16,000 ppm (rat, 8 hr)
NIOSH (US health exposure limits):
PEL (Permissible)
 none
REL (Recommended)
 Ca
IDLH (Immediate danger)
 Ca [N.D.]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references
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