DIMETHYL SULPHOXIDE

DIMETHYL SULPHOXIDE For UV Spectroscopy

Methyl sulfoxide; DMSO; Sulfinylbis(methane); Dimethyl sulfoxide; Sulfinylbismethane

Article No.

00125

Grade

For UV Spectroscopy

Purity

99.8%

CAS No.

67-68-5

Molecular Formula

CH₃SO.CH₃

Molecular Weight

78.13

H.S. Code

2930.9099

Shelf Life

60 Months

MSDS

Certificate of Analysis (COAs)

Physical Properties

Physical state at 20 °C

Liquid

Colour

Clear Colorless

Odour

Garlic-like odor

Melting point/ Freezing point [°C]

16 - 19 °C

Auto-ignition temperature [°C]

215°C

Flash point [°C]

87 °C

Boiling point [°C]

189 °C

Evaporation rate

4.3

Vapour pressure [20°C]

0.55 hPa at 20 °C

Vapour density

2.7

Density [g/cm3]

1.1 g/cm3

Solubility in water [% weight]

Completely miscible

Partition coefficient Log Pow octanol / water at 20°C

-2.03

Explosion limits - upper [%]

42%

Explosion limits -lower [%]

3.50%

Packings

500 ml (00500)
1000 ml (01000)
2500 ml (02500)
2500 ml (02500)

Specifications

Appearance	A clear colorless liquid
Purity (by GC)	Min 99.8%
UV transmittance (1cm cell, ref: water):
at 270 nm	Min 10%
at 280 nm	Min 40%
at 310 nm	Min 80%
at 350 nm	Min 98%
Water (H2O)	Max 0.1%
Residue on evaporation	Max 0.001%
Acidity	Max 0.0005 meq/g
Alkalinity	Max 0.0002 meq/g

Revision Date : 23-Dec-2021

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