Hydrogen sulfide

hydrosulfuric acid, sewer gas, sulfuretted hydrogen

How to detect Hydrogen sulfide

Formula: H2S | CAS: 7783-06-4

Synonyms: hydrosulfuric acid, sewer gas, sulfuretted hydrogen

Specification

SpecificationValue/Information
FormulaH2S
CAS no.7783-06-4
Gas Response Factor, 11.7 eV1.5
Gas Response Factor, 10.6 eV4
Gas Response Factor, 10.0 eVZR
ppm per mg/m⁻³, (20 °C, 1 bar)0.706
Molecular Weight, g/mole34.0
Melting point, °C-85
Boiling point, °C-60
Flash point, °C-
Upper Explosive Limit, %44
SpecificationValue/Information
Lower Explosive Limit, %4.3
Density, g.cm⁻³1.496
Ionisation Energy, eV10.46
EH40 TWA, ppm5
EH40 TWA, mg.m⁻³7
EH40 STEL, ppm10
EH40 STEL, mg.m⁻³14
NIOSH IDLH, ppm100
OSHA TWA PEL, ppm10
OSHA TWA PEL, mg.m⁻³15

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