National Pollutant Inventory

Substances

Carbon monoxide: Overview

Description

Carbon monoxide is used as a chemical intermediate in some chemical processes (production of formaldehyde and methanol).

Substance details

Substance name: Carbon monoxide

CASR number: 630-08-0

Molecular formula: CO

Synonyms: carbon oxide, carbonic oxide

Physical properties

Carbon monoxide is a highly poisonous, colourless, odourless and tasteless gas. It is very flammable and mixes well with air, easily forming explosive mixtures.

Melting Point: -205°C

Boiling Point: -191°C

Vapour density: 0.967 (air=1)(at 25°C)

Chemical properties

Carbon monoxide will form when carbon in fuels (petrol, wood, coal, natural gas) is not burned completely. It is highly flammable.

Carbon monoxide is soluble in some organic solvents, such as ethyl acetate, chloroform and acetic acid. It will form toxic and flammable compounds when exposed to finely dispersed metal powders. It may react vigorously with oxygen, acetylene, chlorine, fluorine and nitrous oxide.

Further information

The National Pollutant Inventory (NPI) holds data for all sources of carbon monoxide emissions in Australia.

Key

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Factory. Credit: Michael Lindquist