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295515

Sigma-Aldrich

Methanethiol

98.0%

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Synonym(s):
Mercaptan C1, Methyl mercaptan
Linear Formula:
CH3SH
CAS Number:
74-93-1
Molecular Weight:
48.11
Beilstein:
1696840
EC Number:
200-822-1
MDL number:
MFCD00004866
PubChem Substance ID:
24857792
NACRES:
NA.22

vapor density

1.66 (vs air)

Quality Level

100

vapor pressure

1536 mmHg ( 20 °C)

Assay

98.0%

expl. lim.

21.8 %

bp

6 °C (lit.)

mp

−123 °C (lit.)

SMILES string

CS

InChI

1S/CH4S/c1-2/h2H,1H3

InChI key

LSDPWZHWYPCBBB-UHFFFAOYSA-N

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Application

Methanethiol (Methyl mercaptan) may undergo steam reforming to hydrogen-rich gas over cerium oxide-coated rhodium/aluminum oxide catalyst via the solid-gas reaction under certain operating conditions. This process has potential application in toxic-waste treatment such as removal of methanethiol present in industrial-waste off-gas.

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Z148504/Z148512 CGA 180 Regulators OR Z146951 CGA 110 Valve with Z147095 CGA 110 to CGA 180 adapter and Z146986 washer. Also recommended Z562610 Lecture bottle station.

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Regulatory Information

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Conversion of poisonous methanethiol to hydrogen-rich gas by chemisorption/reforming over nano-scale CeO2: The use of CeO2 as catalyst coating material.
Laosiripojana N
Applied Catalysis. B, Environmental, 102(1-2), 267-275 (2011)
K Yaegaki et al.
Journal of periodontal research, 27(4 Pt 1), 233-238 (1992-07-01)
Volatile sulfur compounds (VSC) in mouth air were estimated by gas chromatography. The amount of VSC and the methyl mercaptan/hydrogen sulfide ratio were significantly increased in patients with periodontal disease. These two parameters also increased in proportion to the bleeding
Govindan Muthuraman et al.
Journal of hazardous materials, 193, 257-263 (2011-08-16)
In this study, an electrocatalytic wet scrubbing process was developed for the simultaneous removal of synthetic odorous gases namely, methyl mercaptan (CH(3)SH) and hydrogen sulfide (H(2)S). The initial process consists of the absorption of CH(3)SH and H(2)S gases by an
Raquel Lebrero et al.
Bioresource technology, 109, 38-45 (2012-02-09)
The performance and microbiology of a biotrickling filter (BTF) treating methyl mercaptan, toluene, alpha-pinene and hexane at the mg m(-3) level was studied at empty bed residence times (EBRT) of 50, 30, 11 and 7 s. Removal efficiencies (REs) higher
Toru Takeshita et al.
Scientific reports, 2, 215-215 (2012-02-23)
Both hydrogen sulfide (H2S) and methyl mercaptan (CH(3)SH) are frequently detected in large amounts in malodorous mouth air. We investigated the bacterial composition of saliva of 30 subjects with severe oral malodor exhibiting extreme CH(3)SH/H(2)S ratios (high H(2)S but low
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Protocols

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Separation of Sulfur dioxide; Hydrogen sulfide; Carbonyl sulfide; Methanethiol; Ethanethiol; Dimethyl disulfide; Carbon disulfide

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