| The Columbia Encyclopedia, Sixth Edition. 2001-07. |
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| lewisite |
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(l ´ s t´´) (KEY) , liquid chemical compound used as a poison gas. Like mustard gas and nitrogen mustard, it is a blistering agent; when inhaled, it is a powerful respiratory irritant. The absorption of lewisite, which penetrates ordinary clothing and even rubber, through the skin may be fatal. Chemically, lewisite is dichloro-2-chlorovinyl arsine, ClCHCHAsCl2. It boils with decomposition at 190°C, and its vapor has a faint odor of geraniums. Lewisite is neutralized by reaction with British antilewisite (2, 3-dimercapto-1-propanol). It is named after its developer, the American chemist Winford Lee Lewis. |
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| | | The Columbia Encyclopedia, Sixth Edition. Copyright © 2007 Columbia University Press. |
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