Dimethyl sulfoxide, For UV-spectroscopy, =99.8% (GC)

Name: Dimethyl sulfoxide
Synonymn: DMSO
Description: for UV-spectroscopy, ≥99.8% (GC)

Container Type: Glass Bottle

Molar Mass: 78.13 g/mol

Empirical Formula: C₂H₆OS
Linear Formula: (CH₃)₂SO

CAS Number: 67-68-5
Bielstein Registry Number: 506008
EC Number: 200-664-3
MDL Number: MFCD00002089
RTECS Number: PV6210000
UNSPSC Code: 12191602

SPECIFICATIONS

Assay (GC): min. 99.8 %
Refractive index (n 20/D): 1.478 - 1.480
Non-volatile matter: max. 0.002 %
Water (Karl Fischer): max. 0.2 %
Absorbance at 360 nm: max. 0.003
Absorbance at 340 nm: max. 0.01
Absorbance at 320 nm: max. 0.04
Absorbance at 300 nm: max. 0.10
Absorbance at 290 nm: max. 0.16
Absorbance 280 nm: max. 0.22
Absorbance at 270 nm: max. 0.4
Absorbance at 265 nm: max. 0.8



PHYSICAL PROPERTIES

Vapor Density: 2.7 (vs air)
Refractive Index: n20/D 1.479(lit.)
Explosion Limit: 42 %, 63 °F
Vapor Pressure: 0.42 mmHg ( 20 °C)
Autoignition Temperature: 573 °F
Refractive Index: n20/D 1.479
Boiling Point: 189 °C
Freezing Point: 18.5 °C
Density: 1.104 g/cm3



SAFETY INFORMATION

Flashpoint: 87 °C
Signal Word: Warning

Hazard Statement(s):
Combustible liquid (H227)

Precautionary Statement(s):
Keep away from heat/sparks/open flames/hot surfaces - No smoking (P210)
Wear protective gloves/protective clothing/eye protection/face protection (P280)

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