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IUPAC name 2-(2-Hydroxy-ethylsulfanyl)-ethanol
Other names 2,2'-Thiodiethanol, β,β'-dihydroxydiethyl sulfide, β-thiodiglycol, thiodiethylene glycol, β-hydroxyethyl sulfide, 2-hydroxyethyl sulfide, bis(β-hydroxyethyl)sulfide, Glyecine A, Kromfax Solvent, Tedegyl
CAS number 111-48-8
PubChem 5447
Molecular formula C4H10O2S
Molar mass 122.19 g/mol
Appearance Clear to pale-yellow liquid
Melting point

-16 °C, 257 K, 3 °F

Boiling point

165 °C at 14 mmHg (1.9 kPa) or decomposition at 282 °C at normal pressure

Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

Thiodiglycol, or bis(2-hydroxyethyl)sulfide, is a viscous, clear to pale-yellow liquid used as a solvent. Its chemical formula is C4H10O2S, or HOCH2CH2SCH2CH2OH. It is miscible with acetone, alcohols, and chloroform. It is soluble in benzene, ether, and tetrachloromethane.

Thiodiglycol is manufactured by reaction of 2-chloroethanol with sodium sulfide. It is structurally similar to diethylene glycol.

Thiodiglycol has both polar and nonpolar solvent properties. It is used as a solvent in a variety of applications ranging from dyeing textiles to inks in some ballpoint pens. In chemical synthesis, it is used as a building block for protection products, dispersants, fibers, plasticizers, rubber accelerators, pesticides, dyes, and various other organic chemicals. In the manufacture of polymers, it is used as a chain transfer agent. As an antioxidant, it is used as an additive in lubricants.

Thiodiglycol is a Chemical Weapons Convention schedule 2 chemical used in the production of sulfur-based blister agents such as mustard gas. Thiodiglycol is also a product of the hydrolysis of mustard gas. It can be detected in the urine of casualties.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Thiodiglycol". A list of authors is available in Wikipedia.
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