Sulfolane

• Tetrahydrothiophene- 1 ,1-dioxide
• Tetramethylenesulfone

Yellow, deliquescent crystals

Fixed

1.26 g · cm -3 ( 30 ° C)

27.4 to 27.8 ° C

285 ° C.

3.5 Pa ( 30 ° C)

Soluble in water

Attention

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Sulfolane, and tetrahydrothiophene -1 ,1-dioxide called, is one of the sulphones and is a polar solvent. The molecule can be described as a five-membered ring of four carbon atoms and one double oxidized sulfur atom; the molecular formula is C4H8O2S.

Properties

The flash point is 165 ° C, the specific heat capacity of 1.5 J / (g · K). Sulfolane is associated with the Water Hazard Class 1.

Use

In the art, it is used as a solvent, such as for the extraction of aromatics. In the gas purification it is used for the separation of sulfur compounds.

In medical applications it can be used to transport substances across cell membranes as a solvent - wanted for drugs, unintentionally also for toxic substances.