Dimethyl sulfoxide

• Catalog No.: 34943
• CAS Number: 67-68-5
• M. F.: C2H6OS
• M. W.: 78.13344
• Purity: ≥99.9% (GC)

SYNONYMS

• Title: 二甲基亚砜
• IUPAC name: methanesulfinylmethane
• IUPAC Traditional name: dimethyl sulfoxide
• Synonyms: DMSO; 甲基亚砜; Methyl sulfoxide

DATABASE IDS

• CAS Number: 67-68-5
• MDL Number: MFCD00002089
• EC Number: 200-664-3
• Beilstein Number: 506008
• PubChem SID: 24861675

PROPERTIES

• Cation Traces: Fe: ≤1 mg/kg
• Grade: puriss. p.a.
• Impurities: ≤0.0001% heavy metals (as Pb)
• Impurities: ≤0.001% free acid (as H2SO4)
• Impurities: ≤0.002% non-volatile matter
• Impurities: ≤0.03% water (Karl Fischer)
• Impurities: ≤0.03% water
• Linear Formula: (CH3)2SO
• Purity: ≥99.9% (GC)
• Quality: dried
• Auto Ignition Point: 573 °F
• Boiling Point: 189 °C(lit.)
• Density: 1.10 g/mL(lit.)
• Flash Point: 87 °C
• Flash Point: 188.6 °F
• Melting Point: 16-19 °C(lit.)
• Refractive Index: n20/D 1.479(lit.)
• Vapor Density: 2.7 (vs air)
• Vapor Pressure: 0.42 mmHg ( 20 °C)
• Explode Limits: 42 %, 63 °F
• Personal Protective Equipment: Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
• RTECS: PV6210000
• German water hazard class: 1

DETAILS

Description (English)

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.

Description (简体中文)

Caution
容易过度冷却，并在室温下缓慢融化固化的产品放在室温下可以再次液化，对其本身无影响。