Dimethyl sulfoxide

• Catalog No.: 41644
• CAS Number: 67-68-5
• M. F.: C2H6OS
• M. W.: 78.13344
• Purity: ≥99.5% (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

PROPERTIES

• Cation Traces: Pb: ≤0.1 mg/kg
• Cation Traces: Sr: ≤0.1 mg/kg
• Cation Traces: Zn: ≤0.1 mg/kg
• Evaporation Residue: ≤0.005%
• Grade: puriss. p.a.
• Impurities: ≤0.001% free acid (as CH3COOH)
• Impurities: ≤0.1% water
• Linear Formula: (CH3)2SO
• Purity: ≥99.5% (GC)
• Cation Traces: Al: ≤0.5 mg/kg
• Cation Traces: Ba: ≤0.1 mg/kg
• Cation Traces: Bi: ≤0.1 mg/kg
• Cation Traces: Ca: ≤0.5 mg/kg
• Cation Traces: Cd: ≤0.05 mg/kg
• Cation Traces: Co: ≤0.02 mg/kg
• Cation Traces: Cr: ≤0.02 mg/kg
• Cation Traces: Cu: ≤0.02 mg/kg
• Cation Traces: Fe: ≤0.5 mg/kg
• Cation Traces: K: ≤0.5 mg/kg
• Cation Traces: Li: ≤0.1 mg/kg
• Cation Traces: Mg: ≤0.1 mg/kg
• Cation Traces: Mn: ≤0.02 mg/kg
• Cation Traces: Mo: ≤0.1 mg/kg
• Cation Traces: Na: ≤1 mg/kg
• Cation Traces: Ni: ≤0.5 mg/kg
• Auto Ignition Point: 573 °F
• Boiling Point: 189 °C(lit.)
• Density: 1.100 g/mL at 20 °C
• Density: 1.10 g/mL(lit.)
• Flash Point: 87 °C
• Flash Point: 188.6 °F
• Melting Point: 16-19 °C(lit.)
• Melting Point: 18-20 °C
• Refractive Index: n20/D 1.479(lit.)
• Refractive Index: n20/D 1.479
• 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。