Merck
All Photos(2)

1.16743

Supelco

Dimethyl sulfoxide

EMPLURA®

Synonym(s):
Methanesulfinylmethane, Methyl sulfoxide, Dimethyl(oxido)sulfur, DMSO, DMSO
Linear Formula:
(CH3)2SO
CAS Number:
Molecular Weight:
78.13
Beilstein:
506008
MDL number:
EC Index Number:
200-664-3

vapor density

2.7 (vs air)

Quality Level

vapor pressure

0.42 mmHg ( 20 °C)

product line

Emplura®

assay

≥99% (GC)

form

liquid

autoignition temp.

573 °F

potency

28300 mg/kg LD50, oral (Rat)
40000 mg/kg LD50, skin (Rat)

expl. lim.

42 %, 63 °F

impurities

≤0.001% Free acid (as CH3COOH)
≤0.2% Water

refractive index

n20/D 1.479 (lit.)

kinematic viscosity

2.14 cSt

bp

189 °C (lit.)

mp

16-19 °C (lit.)

transition temp

flash point 87 °C

solubility

1000 g/L

density

1.10 g/mL (lit.)

storage temp.

2-30°C

SMILES string

CS(C)=O

InChI

1S/C2H6OS/c1-4(2)3/h1-2H3

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

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General description

EMPLURA® is our low-cost alternative to high-purity qualities. With EMPLURA we offer a range of solvents for a plurality of basic applications in non-regulated industries and for less demanding applications, preparative laboratory work and cleaning purposes. EMPLURA solvents provide adequate specifications with the most important parameters.

Caution

Supercools easily and remelts slowly at room temperature. Solidified product can be re-liquified by warming to room temperature without detriment to the product.

Specifications

Saturation Concentration in Air: 8.0 g/m3 (20 °C)

Analysis Note

Purity (GC): ≥ 99.0 %
Identity (IR): conforms
Free acid (as CH₃COOH): ≤ 0.001 %
Density (d 20 °C/ 4 °C): 1.099 - 1.101
Refractive index (n 20/D): 1.478 - 1.479
Melting point: ≥ 18.0 °C
Absorption: conforms
Related substances (GC): conforms
Readily carbonizable substances: conforms
Water: ≤ 0.2 %

Legal Information

EMPLURA is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

188.6 °F - closed cup

Flash Point(C)

87 °C - closed cup

Certificate of Analysis

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Certificate of Quality

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