Names | |
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Preferred IUPAC name
Diphenylarsinous cyanide | |
Systematic IUPAC name
Diphenylarsanecarbonitrile | |
Other names
Clark 2
Diphenylarsinecarbonitrile | |
Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.041.545 |
EC Number |
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MeSH | Clark+2 |
PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
C13H10AsN | |
Molar mass | 255.002920742 g mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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[1] and shortly thereafter used like the related Clark 1 gas by the Germans for chemical warfare in the First World War. The substance forms colourless, garlic-smelling crystals and causes nausea, vomiting and headaches. It can subsequently lead to e.g. pulmonary oedema (fluid on the lungs).
See also
References
- ^ Sturniolo, G. und Bellinzoni , G. (1919); Boll. chim. pharm., 58, 409–410