Product Name: Dimethyl sulfoxide

Synonyms: DMSO; Methyl sulfoxide

CAS: 67-68-5

Molecular Formula: C2H6OS

Molecular Weight：78.13

Properties:

Appearance ：Colourless liquid                 Density ：1.1004 g⋅ cm−3

Melting point ：19 °C (66 °F; 292 K)        Boiling point ：189 °C (372 °F; 462 K)

Solubility in water ：Miscible

Specification:

Assay(in DUSO): ³ 99.9%

Crystalizing Point: ³18.00℃

Acid Value: £0.03

Water content: £0.1%

Teansmittance (400mm): ³96%

Refractive index (70℃): 1.4775-1.4790

Smell: Odorless or residual odor

Applications:

DMSO is a solvent for many gases, synthetic fibers, paint, hydrocarbons, salts, and natural products. Because it is aprotic, relatively inert, nontoxic, and stable at high temperatures, it is a frequently used solvent for chemical reactions.

The multi-step carbon fiber manufacturing process relies on the use of DMSO as a processing solvent. DMSO is of great value in spinning polyacrylonitrile (PAN) fibers, a precursor to carbon fiber. Dimethyl sulfoxide is used both in the spinning dope and in the coagulation bath.

UN No.: Not a dangerous good

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