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471577

Sigma-Aldrich

Dimethyl sulfide

≥99%

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Synonym(s):
DMS, Methyl sulfide
Linear Formula:
(CH3)2S
CAS Number:
75-18-3
Molecular Weight:
62.13
Beilstein:
1696847
EC Number:
200-846-2
MDL number:
MFCD00008562
PubChem Substance ID:
57650900

vapor density

2.1 (vs air)

Quality Level

200

vapor pressure

26.24 psi ( 55 °C)
7.79 psi ( 20 °C)

Assay

≥99%

autoignition temp.

402 °F

expl. lim.

19.7 %

refractive index

n20/D 1.435 (lit.)

bp

38 °C (lit.)

mp

−98 °C (lit.)

solubility

water: soluble 7.28 g/L at 20 °C

density

0.846 g/mL at 25 °C (lit.)

SMILES string

CSC

InChI

1S/C2H6S/c1-3-2/h1-2H3

InChI key

QMMFVYPAHWMCMS-UHFFFAOYSA-N

Gene Information

rat ... Maoa(29253) , Maob(25750)

Related Categories

General description

Dimethyl sulfide (DMS) is a biogenic sulfur compound that is released from the ocean to the atmosphere. It forms the main component of the global sulfur cycle. The thermal decomposition behavior of dimethyl sulfide in gas phase has been investigated in a static system at 681-723K. The mechanism of its photochemical oxidation in atmosphere has been described. The rate constant of the gas phase reaction between OH radicals and DMS have been determined by relative rate methods and flash photolysis technique. The differential Raman cross section, σDMS at different excitation wavelengths has been measured. The adsorption of DMS on activated carbons (ACs) has been reported to take place by hydrogen bonding.

Pictograms

Flame
GHS02

Signal Word

Danger

Hazard Statements

H225

Hazard Classifications

Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

-32.8 °F - closed cup

Flash Point(C)

-36 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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The pyrolysis of dimethyl sulfide, kinetics and mechanism.
Shum LGS and Benson SW.
International Journal of Chemical Kinetics, 17(7), 749-761 (1985)
Adsorption of dimethyl sulfide vapors by activated carbons.
Goyal M, et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 322(1), 164-169 (2008)
The reaction of OH radicals with dimethyl sulfide.
Wallington TJ, et al.
International Journal of Chemical Kinetics, 18(8), 837-846 (1986)
Differential Raman cross section of dimethyl sulfide.
Barletta RE and Roe CH.
Journal of Raman Spectroscopy, 42(1), 117-121 (2011)
Yin F, et al.
Journal of Atmospheric Chemistry, 11(4), 309-364 (1990)
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