Ethylene oxide

oxirane, dimethylene oxide, oxane, 1,2-epoxy ethane, C2H4O, ETO

How to detect Ethylene oxide

Formula: C2H4O | CAS: 75-21-8

Synonyms: oxirane, dimethylene oxide, oxane, 1,2-epoxy ethane, C2H4O, ETO

Ethylene oxide is the starting point for a wide variety of chemicals, most importantly ethylene glycol and polyethylene glycols.

Specification

SpecificationValue/Information
FormulaC2H4O
CAS no.75-21-8
Gas Response Factor, 11.7 eV2
Gas Response Factor, 10.6 eV9
Gas Response Factor, 10.0 eVZR
ppm per mg/m⁻³, (20 °C, 1 bar)0.546
Molecular Weight, g/mole44.0
Melting point, °C-112.8
Boiling point, °C10.7
Flash point, °C-28.9 (aq)
Upper Explosive Limit, %100
Lower Explosive Limit, %3
SpecificationValue/Information
Density, g.cm⁻³0.82
Ionisation Energy, eV10.56
EH40 TWA, ppm5
EH40 TWA, mg.m⁻³9.2
NIOSH TWA REL, ppm0.1
NIOSH TWA REL, mg.m⁻³0.18
NIOSH ceiling, ppm5
NIOSH ceiling, mg.m⁻³9
NIOSH IDLH, ppm800
OSHA TWA PEL, ppm1
OSHA TWA PEL, mg.m⁻³5

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