Dimethyl sulfoxide #67-68-5

Product Parameters

It is used as an analytical reagent and gas chromatography stationary liquid, as well as a solvent for ultraviolet spectral analysis. Additionally, it is applied in aromatic hydrocarbon extraction, as a reaction medium for resins and dyes, and as a solvent for acrylic fiber polymerization and spinning.

PropertyValue
Melting Point18.4 °C
Boiling Point189 °C (lit.)
Density1.100 g/mL at 20 °C
Vapor Density2.7 (vs air)
Vapor Pressure0.42 mm Hg (20 °C)
Refractive Indexn20/D 1.479(lit.)
FEMA3875 | METHYLSULFINYLMETHANE
Flash Point192 °F
Storage ConditionStore at +5°C to +30°C.
SolubilityMiscible (completely) in water
pKa35 (at 25°C)
FormLiquid (depending on temperature)
ColorTransparent and colorless
Relative Polarity0.444
OdorSlight garlic odor
Appearancecolorless liquid
Odor Typealliaceous
Biological Sourcesynthetic
Explosive Limit (Explosive Limit)1.8-63.0%(V)
Water SolubilitySoluble in water, methanol, acetone, ether, benzene, chloroform.
Freezing Point18.4°C
SensitivityHygroscopic
Maximum Wavelength (λmax)λ: 285 nm Amax: ≤0.20λ: 295 nm Amax: ≤0.20


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