a colorless, volatile, highly poisonous liquid, COCl, prepared by the reaction of carbon monoxide with chlorine in the presence of activated charcoal or, orig., in sunlight; carbonyl chloride: used as a poison gas, in organic synthesis, in making dyes, etc.
Origin of phosgeneso named (1812) by Sir Humphry Davy ; from Classical Greek phōs, light (see phosphorus) + -gene, -gen
A colorless gas, COCl2, having an odor similar to mown or moldy hay, used as a poison gas and in making resins, plastics, and dyes.
Origin of phosgeneFrench phosgène : Greek phōs, light; see phos– + French -gène, -gen.
- (inorganic chemistry) Alternative form of carbonyl chloride.