adamsite

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adamsite

(ˈædəmˌzaɪt)
n
(Elements & Compounds) a yellow poisonous crystalline solid that readily sublimes; diphenylaminechlorarsine. It is used in chemical warfare as a vomiting agent. Formula: C6H4AsClNHC6H4; relative density: 1.65; melting pt: 195°C; boiling pt: 410°C. Also called: phenarsazine chloride
[C20: named after Roger Adams (1899–1971), American chemist]
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Lachrymators (tear-producing agents) like chloroacetone (CA), xylyl bromide (white cross), and chloroacetophenone (CN), along with vomiting agents diphenylaminearsine (DM and adamsite) and chlorpicrin (PS) were used in hand grenades, mortar rounds, and artillery shells.