Dimethyl sulfoxide ?DMSO?CAS: 67-68-5

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:

Assayin 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