1,1,1,2-Tetrachloroethane

• R- 130a
• 1,1,1,2- TeCA
• Asymmetric tetra

Volatile, colorless liquid

Liquid

1.55 g · cm -3

-70.2 ° C

138 ° C

18.6 mbar ( 25 ° C)

Slightly soluble in water

1.481 (20 ° C)

Risk

670 mg · kg -1 ( LD50, rat, oral)

Template: Infobox chemical / molecular formula search available

1,1,1,2- tetrachloroethane is a chemical compound selected from the group of the saturated aliphatic halogenated hydrocarbons, and organic chlorine compounds. It is isomeric to 1,1,2,2- tetrachloroethane.

Production and representation

1,1,1,2- tetrachloroethane may be obtained by two-step addition reaction of acetylene with chlorine (via dichloroethene ), but mainly 1,1,2,2- tetrachloroethane formed.

It can be directly obtained by chlorination of 1,1,2 -trichloroethane.

It also occurs as an impurity in the preparation of some widespread chlorinated hydrocarbons.

Properties

1,1,1,2- tetrachloroethane is a flammable, volatile, colorless liquid which is slightly soluble in water. At 550-650 ° C is pyrolyzed, which arise, among others, chlorine and hydrogen chloride.

Use

It is used as a solvent and for the preparation of varnishes and paints, as well as an intermediate for the production of trichlorethylene and perchlorethylene. In the U.S., it has been demonstrated in low concentrations in the air and in drinking water.