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diphosgene

[dahy-fos-jeen]
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noun Chemistry.
  1. a colorless liquid, C2Cl4O2, usually derived from methyl formate or methyl chloroformate by chlorination: a World War I poison gas now used chiefly in organic synthesis.
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Origin of diphosgene

First recorded in 1920–25; di-1 + phosgene
Also called trichloromethyl chloroformate.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for diphosgene

diphosgene

noun
  1. an oily liquid with an extremely poisonous vapour, made by treating methanol with phosgene and chlorinating the product: has been used in chemical warfare. Formula: ClCOOCCl 3
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
diphosgene in Medicine

diphosgene

(dī-fŏz′jēn′)
n.
  1. A colorless liquid that is used in organic synthesis and whose vapor was used as a poison gas in World War I.trichlormethyl chloroformate
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.