1,1-Dichloroethylene

1,1-Dichloroethylene
Names
	Preferred IUPAC name 1,1-Dichloroethene
	Other names 1,1-Dichloroethylene; 1,1-DCE; Vinylidene chloride; Vinylidene dichloride; Asymmetrical dichloroethene
Identifiers
CAS Number	75-35-4 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:34031 ;
ChemSpider	6126 ;
ECHA InfoCard	100.000.786
KEGG	C14039 ;
PubChem CID	6366;
UNII	21SK105J9D ;
CompTox Dashboard (EPA)	DTXSID8021438 ;
	InChI InChI=1S/C2H2Cl2/c1-2(3)4/h1H2 Key: LGXVIGDEPROXKC-UHFFFAOYSA-N ;
	SMILES ClC(Cl)=C;
Properties
Chemical formula	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)
Solubility in water	2,240mg/L (25°C)
Vapor pressure	500 mmHg (20°C)
Magnetic susceptibility (χ)	−49.2·10−6 cm3/mol
Dipole moment	1.3 D
Structure
Point group	C2v
Molecular shape	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):
LDLo (lowest published)	1500 mg/kg (rat); 194 mg/kg (mouse)
LCLo (lowest published)	200 ppm (rat, 4.1 hr); 98 ppm (mouse, 22–23 hr); 1,000 ppm (rat, 2.4 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). verify (what is ?) Infobox references

1,1-Dichloroethylene, commonly called vinylidene chloride or 1,1-DCE, is an organochloride with the molecular formula CCl₂CH₂. 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.