carbonyl
- n a compound containing metal combined with carbon monoxide
- a relating to or containing the carbonyl group
- In this category are bromine, phosgene (carbonyl chloride), chlorine and cyanogen compounds.
- For a few days nickel carbonyl (a versatile industrial chemical) was a prime suspect, but the first laboratory tests proved useless because of contamination.
- Phosgene, synthesized early in the 19th century and also known as carbonyl chloride, is a colorless, highly toxic gas.