Product Name: Dimethyl Sulfoxide Chemical Name: Dimethyl Sulfoxide; Methyl Sulfoxide; Sulfinylbis (Methane); DMSO Molecular Formula: C2H6OS Molecular Weight: 78.12 CAS No.: 67-68-5 EINECS No.: 200-664-3 FEMA No.: 3875 Characteristics: Density: 1.1 Melting Point: 18.4-19.0°C Boiling Point: 189°C Refractive Index: 1.477-1.48 Flash Point: 95°C Product Description: Dimethyl sulfoxide (DMSO) is organic sulfide compound. It is colorless, odorless and transparent liquid at room temperature. It is a kind of moisture absorption combustible liquid. It has characteristics of high polarity, high boiling point, non-proton, mixed with water, low toxicity and good heat stability. It is soluble in ethanol, propanol, benzol, chloroform and many organic matters. It was known as “Omnipotent Solvent” Dimethyl sulfoxide (DMSO) can be widely used as solvent and reaction reagent, especially as processing solvent and laddering solvent in the acrylonitrile polymerization reaction, and synthetic solvent and laddering solvent for polyurethane, also for polyamide, polyimide, polysulfone resin, aromatic hydrocarbon, butadiene and Chlorofluoroaniline etc. Moreover, Dimethyl sulfoxide (DMSO) has the functions of anti-inflammatory analgesic, diuresis and mitigation. It is added in dugs as analgesia ingredient. It also known as “Omnipotent Drug” II. Specification DMSO CONTENT %≥99.90 CRYSTALIZING POINT (°C)≥18.10 ACID VALUE (mgKOH/g)≤0.02 REFRACTIVE INDEX (nd20°C)1.4780 ~1.4790 TRANSMITTANCE 400nm50%≥96.0 WATER CONTENT %≤0.1 SPECIFIC GRAVITY 1.095 ~ 1.101 ODOUR Odorless or little peculiar smell UV ABSORPTION 275nm≤0.30 295nm/275nm≤0.45
for polyamide, polyimide, polysulfone resin, aromatic hydrocarbon