Carbon oxide

Carbon oxides, also called oxocarbons, are chemical compounds made of the elements carbon and oxygen.

Unlike hydrocarbons, very few carbon oxides are stable. Four carbon oxides are stable as pure compounds at room temperature: carbon monoxide CO, carbon dioxide CO₂, carbon suboxide C₃O₂, and mellitic anhydride C₁₂H₉. Carbon suboxide is metastable and needs to be kept away from light or it will polymerise.

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