Ethylene oxide: Overview
Description
Ethylene oxide is primarily used in the manufacture of other chemicals. Most ethylene oxide is used to manufacture ethylene glycol (used in automotive antifreeze/coolant) and polyester. Ethylene oxide is also used for the sterilisation of equipment in hospitals and veterinary institutions. A small amount is also used to control pests on stored agricultural products.
Substance details
Substance name: Ethylene oxide
CASR number: 75-21-8
Molecular formula: C2H40
Synonyms: 1,2-Epoxyethane, ETO, EtO, E.O., Ethene oxide, Alpha,beta-oxidoethane, oxirane, Dimethylene Oxide, oxacyclopropane, dihydrooxirene, oxane, oxyfume, oxyfume 12 fema no.2433, amprolene, amproline.
Physical properties
A colourless gas.
Melting Point: -113°C
Boiling Point: 10.5°C
Specific Gravity: 0.9
Chemical properties
Flammable. Ethylene oxide is irritating, yet has a sweet etherlike odour. It is highly reactive and will completely dissolve in water.
Further information
The National Pollutant Inventory (NPI) holds data for all sources of ethylene oxide emissions in Australia.
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