1,2-Ethanedithiol

• Ethane -1 ,2 -dithiol
• Dithioglycol
• 1,2- dimercaptoethane

Colorless liquid with an unpleasant odor

Liquid

1.12 g · cm -3

-41 ° C

146-149 ° C

5.3 mbar ( 23 ° C)

Practically insoluble in water

1.558 (20 ° C)

Risk

342 mg · kg -1 ( LD50, mouse, oral)

-54.3 KJ / mol

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1,2- Ethanedithiol is a chemical compound from the group of thiols.

Production and representation

1,2- ethanedithiol is prepared industrially by the reaction of 1,2-dichloroethane with sodium hydrogen sulfide. In the laboratory, it may also be prepared by reacting 1,2-dibromoethane with thiourea, followed by hydrolysis, are shown.

Properties

1,2- ethanedithiol is a little volatile, colorless liquid with an unpleasant odor, is practically insoluble in water.

Use

1,2- ethanedithiol is used for the preparation of cyclic thioacetals of aldehydes.

Safety

The vapors of 1,2- ethanedithiol can combine with air to form an explosive mixture (flash point 50 ° C).