Of or denoting the divalent radical =C=O, present in such organic compounds as aldehydes, ketones, amides, and esters, and in organic acids as part of the carboxyl group
A toxic colourless liquid, Ni(CO4), used as a carbonylation agent.
Another term for phosgene.
A colorless poisonous gas made by the reaction of chlorine and carbon monoxide. It was used as a poison gas, notably in World War I