Diphenylchlorarsine

Diphenylchlorarsine
Names
Preferred IUPAC name
Diphenylarsinous chloride
Other names
diphenylchlorarsine, diphenylchloroarsenic, chlorodiphenylarsane, sneezing gas
Identifiers
3D model (JSmol)
Abbreviations Ph2AsCl
ChemSpider
ECHA InfoCard 100.010.839 Edit this at Wikidata
UNII
  • InChI=1S/C12H10AsCl/c14-13(11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H checkY
    Key: YHHKGKCOLGRKKB-UHFFFAOYSA-N checkY
  • InChI=1/C12H10AsCl/c14-13(11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H
    Key: YHHKGKCOLGRKKB-UHFFFAOYAA
  • Cl[As](C1=CC=CC=C1)C2=CC=CC=C2
  • Cl[As](c1ccccc1)c2ccccc2
Properties
C12H10AsCl
Molar mass 264.59 g mol−1
Appearance colorless crystalline solid
Density 1.55 g/cm3
Melting point 42 °C (108 °F; 315 K)
Boiling point 307.2 °C (585.0 °F; 580.3 K)
-145.5·10−6 cm3/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

Diphenylchloroarsine (DA) is the organoarsenic compound with the formula (C6H5)2AsCl. It is highly toxic and was once used in chemical warfare. It is also an intermediate in the preparation of other organoarsenic compounds. The molecule consists of a pyramidal As(III) center attached to two phenyl rings and one chloride. It was also known as sneezing oil during World War I by the Allies.