Diphenylcyanoarsine, also called Clark 2 (Chlor-Arsen-Kampfstoff 2, being the successor of Clark 1) by the Germans, was discovered in 1918 by Sturniolo and Bellinzoni
[Sturniolo, G. und Bellinzoni, G. (1919); ''Boll. chim. pharm.'', 58, 409–410] and shortly thereafter used like the related
Clark 1 gas by the Germans for chemical warfare in the
First World War
World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...
. The substance causes nausea, vomiting, and headaches. It can subsequently lead to e.g.
pulmonary edema
Pulmonary edema, also known as pulmonary congestion, is excessive liquid accumulation in the tissue and air spaces (usually alveoli) of the lungs. It leads to impaired gas exchange and may cause hypoxemia and respiratory failure. It is due t ...
(fluid in the lungs).
See also
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Cacodyl cyanide
Cacodyl cyanide is a highly poisonous organoarsenic compound discovered by Robert Bunsen in the 1840s. It is very volatile and flammable, as it shares the chemical properties of both arsenic and cyanide.
Synthesis
Cacodyl cyanide can be prepared ...
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Clark 1
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Chemical weapons
A chemical weapon (CW) is a specialized munition that uses chemicals formulated to inflict death or harm on humans. According to the Organisation for the Prohibition of Chemical Weapons (OPCW), this can be any chemical compound intended as a ...
References
{{Chemical agents
Chemical weapons
Vomiting agents
Organoarsenic compounds
Pulmonary agents
Phenyl compounds
Nitriles
Arsenic(III) compounds
Substances discovered in the 1910s