Chloromethane

R40, methyl chloride

How to detect Chloromethane

Formula: CH3Cl | CAS: 74-87-3

Synonyms: R40, methyl chloride

Specification

Specification Value/Information
Formula CH3Cl
CAS no. 74-87-3
Gas Response Factor, 11.7 eV 0.74
Gas Response Factor, 10.6 eV ZR
Gas Response Factor, 10.0 eV ZR
ppm per mg/m⁻³, (20 °C, 1 bar) 0.476
Molecular Weight, g/mole 50.0
Melting point, °C -97
Boiling point, °C -24.2
Flash point, °C -66
Specification Value/Information
Upper Explosive Limit, % 17.4
Lower Explosive Limit, % 7
Density, g.cm⁻³ 0.915
Ionisation Energy, eV 11.28
EH40 TWA, ppm 50
EH40 TWA, mg.m⁻³ 105
EH40 STEL, ppm 100
EH40 STEL, mg.m⁻³ 210
NIOSH IDLH, ppm 2000
OSHA TWA PEL, ppm 100

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