Chinese name: dimethyl sulfoxide

English name: Soluble in dimethyl sulfoxide

CAS: 67-68-5

EINECS number: 200-664-3

Molecular formula: C2H6OS

MDL number: MFCD00002089

Molecular weight: 78.13

Appearance properties: colorless odorless liquid.

Appearance: Colorless liquid, hygroscopic. Almost odorless, with a bitter taste. Soluble in water, ethanol, acetone, ether, benzene and chloroform.

Solubility: soluble in water, soluble in ethanol, acetone, ether, chloroform, etc.

Melting point: 18.4 °C

Boiling point: 189 °C(lit.)

Density: 1.100 g/mL at 20 °C

Vapor density: 2.7 (vs air)

Vapor pressure: 0.42 mm Hg (20 °C)

FEMA: 3875

Refractive index: n20/D 1.479(lit.)

Flash point: 192 °F

Storage: Store at RT.

Solubility: miscible (completely) in water

Acidity factor (pKa) : 35(at 25℃)

Form: liquid (temperature dependent)

Color: clear colorless

Odor: A slight smell of garlic

Relative polarity: 0.444

Fragrance: alliaceous

water solubility: Soluble in water, methanol, acetone, ether, benzene, chloroform.

Freezing point: 18.4℃

Sensitivity: hygroscopicity

Maximum wavelength (λmax) : λ: 285 nm Amax: ≤0.20

λ: 295 nm Amax: ≤0.20

JECFA Number: 507

Merck: 14,3259

BRN: 506008

Dielectric constant: 41.9 (55℃)

Stability: Stable. Incompatible with most materials, including acyl chloride, strong acids, strong oxidants, strong reducing agents, phosphorus halide, moisture, copper wire + trichloroacetic acid. Can react violently with many materials - check the full msds before use. It is hygroscopic.

InChIKey: IAZDPXIOMUYVGZ-UHFFFAOYSA-N

LogP: -1.35

use

Used for aromatic extraction, resin and dye reaction medium, acrylic fiber polymerization, drawing solvent, etc