Carbonic oxide

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Related to Carbonic oxide: monoxide
(Chem.) a colorless gas, CO, of a light odor, called more correctly carbon monoxide. It is almost the only definitely known compound in which carbon seems to be divalent. It is a product of the incomplete combustion of carbon, and is an abundant constituent of water gas. It is fatal to animal life, extinguishes combustion, and burns with a pale blue flame, forming carbon dioxide.

See also: Carbonic

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The APP upgrade project will result in a 10% reduction of nitric and carbonic oxide emissions, and it will also cut inorganic dust emissions by 20%.