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Specifications Synonyms: DMSO; Methyl sulfoxideFormula: (CH3)2SOFormula Weight: 78.13CAS No.: 67-68-5Purity: ≥99.9�nsity: 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. LLCPackaging: 1, 6 x 1, 2 L in Sure/Seal™Packaging: 100, 12 x 100 mL in Sure/Seal™Packaging: 18 L in Pure-Pac™ 1Packaging: 20 L in Pure-Pac™ 2Packaging: 200 L in Pure-Pac™ 1Assay: ≥99.9%Autoignition Temp.: 573°FBP: 189°C(lit.)Density: 1.10 g/mL(lit.)Evapn. Residue: <0.0005%Expl. Lim.: 42 %, 63°FGrade: anhydrousImpurities: <0.005% waterMP: 16-19°C(lit.)Refractive Index: n20/D 1.479(lit.)Vapor Density: 2.7 (vs air)Vapor Pressure: 0.42 mmHg ( 20°C)
