Sulfur dioxide

sulfurous acid anhydride, sulfurous oxide, sulfur oxide, Sulfotep

How to detect Sulfur dioxide

Formula: SO2 | CAS: 7446-09-5

Synonyms: sulfurous acid anhydride, sulfurous oxide, sulfur oxide, Sulfotep

Specification

SpecificationValue/Information
FormulaSO2
CAS no.7446-09-5
Gas Response Factor, 11.7 eV1.3
Gas Response Factor, 10.6 eVZR
Gas Response Factor, 10.0 eVZR
ppm per mg/m⁻³, (20 °C, 1 bar)0.375
Molecular Weight, g/mole64.0
Melting point, °C-75.6
Boiling point, °C-10
Flash point, °C-
Lower Explosive Limit, %-
Density, g.cm⁻³1.25
SpecificationValue/Information
Ionisation Energy, eV12.3
EH40 TWA, ppm2
EH40 TWA, mg.m⁻³5.3
EH40 STEL, ppm5
EH40 STEL, mg.m⁻³13
NIOSH ST, ppm3
NIOSH TWA REL, ppm2
NIOSH ST, mg.m⁻³13
NIOSH TWA REL, mg.m⁻³5
NIOSH IDLH, ppm100
OSHA TWA PEL, ppm5
OSHA TWA PEL, mg.m⁻³13

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