Methyl mercaptan

Mercaptomethane, methanethiol, methyl sulfhydrate

How to detect Methyl mercaptan

Formula: CH4S | CAS: 74-93-1

Synonyms: Mercaptomethane, methanethiol, methyl sulfhydrate

Specification

SpecificationValue/Information
FormulaCH4S
CAS no.74-93-1
Gas Response Factor, 11.7 eV1
Gas Response Factor, 10.6 eV0.7
Gas Response Factor, 10.0 eV0.6
ppm per mg/m⁻³, (20 °C, 1 bar)0.5
Molecular Weight, g/mole48.0
Melting point, °C-121.1
Boiling point, °C6
Flash point, °C-17.8 (aq)
SpecificationValue/Information
Upper Explosive Limit, %21.8
Lower Explosive Limit, %3.9
Density, g.cm⁻³0.9
Ionisation Energy, eV9.44
EH40 TWA, ppm0.5
EH40 TWA, mg.m⁻³1
NIOSH ceiling, ppm0.5
NIOSH ceiling, mg.m⁻³1
NIOSH IDLH, ppm150

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