Synonyms: DMSO; Methyl sulfoxide
Formula: (CH3)2SO
Formula Weight: 78.13
CAS No.: 67-68-5
Purity: ≥99.9%
Density: 1.10 g/mL(lit.)
Caution: Supercools easily and remelts slowly at room temperature. Solidified product can be re-liquified by warming to room temperature without detriment to the product.
Other Notes: Pure-Pac® II containers require the Micromatic MacroValve coupler for dispensing solvents, Z560723.
Legal Information: Pure-Pac is a registered trademark of Sigma-Aldrich Co. LLC
Packaging: 1, 6 x 1, 2 L in Sure/Seal™
Packaging: 100, 12 x 100 mL in Sure/Seal™
Packaging: 18 L in Pure-Pac™ 1
Packaging: 20 L in Pure-Pac™ 2
Packaging: 200 L in Pure-Pac™ 1
Assay: ≥99.9%
Autoignition Temp.: 573°F
BP: 189°C(lit.)
Density: 1.10 g/mL(lit.)
Evapn. Residue: <0.0005%
Expl. Lim.: 42 %, 63°F
Grade: anhydrous
Impurities: <0.005% water
MP: 16-19°C(lit.)
Refractive Index: n20/D 1.479(lit.)
Vapor Density: 2.7 (vs air)
Vapor Pressure: 0.42 mmHg ( 20°C)