1,1-dichloroethene
Also known as 1,1-DCE, Vinylidene chloride, VDC, Vinylidene chloride monomer, Vinylidene dichloride, 1,1-dichloroethylene
1,1-Dichloroethylene, commonly called vinylidene chloride or 1,1-DCE, is an organochloride with the molecular formula . 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.
Chemical data
- Formula
- C2H2Cl2
- Molecular weight
- 96.94 g/mol
- IUPAC name
- 1,1-dichloroethene
- SMILES
- C=C(Cl)Cl
- InChIKey
- LGXVIGDEPROXKC-UHFFFAOYSA-N
- XLogP
- 2.3
- Polar surface area
- 0 Ų
- H-bond donors
- 0
- H-bond acceptors
- 0
- Formal charge
- 0
via PubChem
Article
7 sectionsContents
- Production
- Applications
- Polyvinylidene chloride
- Safety
- See also
- References
- External links
1,1-Dichloroethylene, commonly called vinylidene chloride or 1,1-DCE, is an organochloride with the molecular formula . 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.
==Production== 1,1-DCE is produced by dehydrochlorination of 1,1,2-trichloroethane, a relatively unwanted byproduct in the production of 1,1,1-trichloroethane and 1,2-dichloroethane. The conversion is a base-catalyzed reaction which uses either NaOH or Ca(OH) with temperature ca. 100 °C. ClCHCHCl + NaOH → ClC=CH + NaCl + HO The gas phase reaction, without the base, would be more desirable but is less selective.