Chloromethane

R40, methyl chloride

How to detect Chloromethane

Formula: CH3Cl | CAS: 74-87-3

Synonyms: R40, methyl chloride

Specification

SpecificationValue/Information
FormulaCH3Cl
CAS no.74-87-3
Gas Response Factor, 11.7 eV0.74
Gas Response Factor, 10.6 eVZR
Gas Response Factor, 10.0 eVZR
ppm per mg/m⁻³, (20 °C, 1 bar)0.476
Molecular Weight, g/mole50.0
Melting point, °C-97
Boiling point, °C-24.2
Flash point, °C-66
SpecificationValue/Information
Upper Explosive Limit, %17.4
Lower Explosive Limit, %7
Density, g.cm⁻³0.915
Ionisation Energy, eV11.28
EH40 TWA, ppm50
EH40 TWA, mg.m⁻³105
EH40 STEL, ppm100
EH40 STEL, mg.m⁻³210
NIOSH IDLH, ppm2000
OSHA TWA PEL, ppm100

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