1,2-Dichloroethane

  • Ethylene dichloride
  • Ethylene chloride
  • EDC
  • R150

A colorless, oily liquid with odor chloroformartigem

Liquid

1.25 g · cm -3

-36 ° C

84 ° C.

87 hPa ( 20 ° C)

Poorly in water ( 8.7 g · l-1 at 20 ° C)

1.4422 (25 ° C)

Risk

Repealed as carcinogenic

-166.8 KJ / mol

Template: Infobox chemical / molecular formula search available

1,2- dichloroethane ( ethylene dichloride, EDC ) is a colorless, flammable, toxic liquid with chloroformartigem odor. This chemical compound is one of the chlorofluorocarbons.

History

1,2- dichloroethane was first synthesized in 1785 by four Dutch chemists by the reaction of ethylene with chlorine.

Representation and extraction

Most of the 1,2-dichloroethane is produced by chlorination and oxychlorination of ethene.

Properties

1,2- dichloroethane is a colorless flammable liquid. The miscibility with water is very limited. With increasing temperature, the solubility of 1,2-dichloroethane in water increases and increases the solubility of water in 1,2- dichloroethane.

Use

Dichloroethane is used for the production of vinyl chloride. It is converted by thermal elimination in the vinyl chloride and hydrogen chloride. Of 1,2- dichloroethane and 1,1,1-trichloroethane is prepared. It is a good solvent and the extraction agent. The 1,2- dichloroethane is in paint strippers, as so-called scavenger in leaded fuels, solvents for resins ( resin / rosin ) and asphalts and used in bitumen.

In addition, there is a large scale for the production of ethylene amines, especially ethylenediamine, used by ammonolysis:

Decomposition by bacteria

Researchers at the University of Ghent has managed to isolate a bacterial strain that can carcinogenic and toxic 1,2- dichloroethane degrade completely within a few days. The scientists decided to give the name of Desulfitobacterium strain dichloroeliminans.

Safety

1,2- dichloroethane is a skin irritant, narcotic, mutagenic, carcinogenic and leads to organ damage (liver, kidney, blood). It can also increase the early and dead birth. It leads to poisoning if ingested and can cause cancer. 1,2- dichloroethane is highly flammable. On combustion, hazardous gases or vapors. In reactions with alkali metals can cause an explosion. 1,2- dichloroethane is very harmful to the environment and hazardous to water ( Water hazard class 3).

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