Ethylene dichloride is an organic compound with the chemical formula C2H4Cl2. It is a colorless, volatile liquid with a sweet, chloroform-like odor. It is produced on a large scale for use as a refrigerant and as a starting material for the production of vinyl chloride, which is used to make PVC plastic.
Ethylene dichloride is produced by the chlorination of ethylene. The reaction is typically carried out using chlorine gas and ethylene gas in the presence of a catalyst, such as iron chloride.