Adamsite

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adamsite

[′a·dəm‚zīt]
(mineralogy)
Greenish-black mica.
(organic chemistry)
C6H4·NH·C6H4·AsCl A yellow crystalline arsenical; used in leather tanning and in warfare and riot control to produce skin and eye irritation, chest distress, and nausea; U.S. Army code is DM. Also known as diphenylaminechloroarsine; phenarsazine chloride.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Adamsite

 

also dihydrophenylarsazine chloride, HN(C6H4)2AsCl; a yellow crystalline powder. Its melting point is 195°C. It is insoluble in water, weakly soluble in most organic solvents, and chemically stable. Adamsite is made from diphenylamine (C6H5)2NH and arsenic trichloride AsCl3 or from diphenylamine chlorohydrate (C6H5)2NH · HC1 and arsenous anhydride As303. Adamsite is one of the groups of substances which irritate the upper respiratory paths (sternutators). At the end of World War I, it was classified as a poison gas.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.