| Title | phosgene |
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Merriam-Webster's Collegiate Dictionary phos·gene \\ˈfäz-ˌjēn\\ noun ETYMOLOGY Greek phōs light + -genēs born, produced — more at fancy , -gen; from its originally having been obtained by the action of sunlight DATE 1812 : a colorless gas COCl2 of unpleasant odor that is a severe respiratory irritant that has been used in chemical warfare Oxford Advanced Learner's Dictionary-牛津双解-OALD7 phosgene phos·gene / 5fCzdVi:n; NAmE 5fB:z- / noun[U] a poisonous gas, used as a chemical weapon , for example during the First World War 光气,碳酰氯(第一次世界大战等用作化学武器) Webster's Third New International Dictionary, Unabridged phos·gene \ˈfäzˌjēn\ noun (-s) Etymology: phos- + -gene; from its being originally obtained by exposing equal volumes of chlorine and carbon monoxide to the sun's rays : a colorless gaseous compound COCl2 of unpleasant sour odor that condenses to a liquid at the temperature of ice, is usually made from carbon monoxide and chlorine in the presence of a catalyst, causes severe and often fatal edema of the lungs some hours after inhalation (as used as a poison gas in World War I), and is now used chiefly as an intermediate (as in the manufacture of organic isocyanates, polyurethanes, and carbonic esters) — called also carbon oxychloride, carbonyl chloride |
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