Ethyldichloroarsine

Ethyldichloroarsine

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Names
IUPAC name Ethylarsonous dichloride
Other names ED Dichloroethylarsane
Identifiers
CAS Number	598-14-1 Y
Properties
Chemical formula	C2H5AsCl2
Molar mass	174.8893 g/mol
Boiling point	75.6 °C (168.1 °F; 348.8 K)
Vapor pressure	{{{value}}}
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Ethyldichloroarsine, sometimes abbreviated "ED", is an organoarsenic compound with the formula CH₃CH₂AsCl₂. This colourless volatile liquid is a highly toxic obsolete vesicant or blister agent that was used during World War I in chemical warfare. The molecule is pyramidal with the Cl-As-Cl and C-As-Cl angles approaching 90° (see image). Its toxic action is similar to lewisite.