Thiodiglycol
Overview
 
Thiodiglycol, or bissulfide (also known as 2,2-thiodiethanol or TDE), is a viscous, clear to pale-yellow liquid used as a solvent. Its chemical formula is 4102, or HOCH2CH2SCH2CH2OH. It is miscible with acetone
Acetone
Acetone is the organic compound with the formula 2CO, a colorless, mobile, flammable liquid, the simplest example of the ketones.Acetone is miscible with water and serves as an important solvent in its own right, typically as the solvent of choice for cleaning purposes in the laboratory...

, alcohol
Alcohol
In chemistry, an alcohol is an organic compound in which the hydroxy functional group is bound to a carbon atom. In particular, this carbon center should be saturated, having single bonds to three other atoms....

s, and chloroform
Chloroform
Chloroform is an organic compound with formula CHCl3. It is one of the four chloromethanes. The colorless, sweet-smelling, dense liquid is a trihalomethane, and is considered somewhat hazardous...

. It is soluble in benzene
Benzene
Benzene is an organic chemical compound. It is composed of 6 carbon atoms in a ring, with 1 hydrogen atom attached to each carbon atom, with the molecular formula C6H6....

, ether
Diethyl ether
Diethyl ether, also known as ethyl ether, simply ether, or ethoxyethane, is an organic compound in the ether class with the formula . It is a colorless, highly volatile flammable liquid with a characteristic odor...

, and tetrachloromethane.

Thiodiglycol is manufactured by reaction of 2-chloroethanol
2-Chloroethanol
2-Chloroethanol is an organochlorine compound with the formula HOCH2CH2Cl. This colorless liquid has a pleasant ether-like odor. It is miscible with water...

 with sodium sulfide
Sodium sulfide
Sodium sulfide is the name used to refer to the chemical compound Na2S, but more commonly it refers to the hydrate Na2S·9H2O. Both are colorless water-soluble salts that give strongly alkaline solutions...

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