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Lewisite 2 information


Lewisite 2[1]
Lewisite 2
Names
Preferred IUPAC name
Bis[(E)-2-chloroethen-1-yl]arsinous chloride
Other names
Dichlorovinylarsine chloride
Chlorobis((E)-2-chlorovinyl)arsine
Bis[(E)-2-chlorovinyl]chloroarsine
(E,E)-Lewisite 2
Identifiers
CAS Number
  • 50361-06-3 checkY
3D model (JSmol)
  • Interactive image
ChemSpider
  • 4519503 checkY
PubChem CID
  • 5368106
UNII
  • 80474J4P87 checkY
CompTox Dashboard (EPA)
  • DTXSID2074794
InChI
  • InChI=1S/C4H4AsCl3/c6-3-1-5(8)2-4-7/h1-4H/b3-1+,4-2+
    Key: YRFJGLQNTWLXKO-ZPUQHVIOSA-N
SMILES
  • C(=C[As](C=CCl)Cl)Cl
Properties
Chemical formula
C4H4AsCl3
Molar mass 233.35 g mol−1
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 4: Very short exposure could cause death or major residual injury. E.g. VX gasFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
4
1
1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Lewisite 2 (L-2) is an organoarsenic chemical weapon with the formula AsCl(CH=CHCl)2. It is similar to lewisite 1 and lewisite 3 and was first synthesized in 1904 by Julius Arthur Nieuwland.[2] It is usually found as a mixture of 2-chlorovinylarsonous dichloride (lewisite 1) as well as bis(2-chloroethenyl) arsinous chloride (lewisite 2) and tris(2-chlorovinyl)arsine (lewisite 3).[2] Pure lewisite 1 is an oily, colorless liquid, however, the impure mixture can appear amber to black with an odor distinct to geraniums.[3][4]

  1. ^ National Center for Biotechnology Information. PubChem Database. Lewisite 2, CID=5368106, https://pubchem.ncbi.nlm.nih.gov/compound/Lewisite-2 (accessed on Apr. 8, 2020)
  2. ^ a b McNutt, Patrick M., and Tracey L. Hamilton. "Ocular toxicity of chemical warfare agents." Handbook of Toxicology of Chemical Warfare Agents. Academic Press, 2015. 535-555.
  3. ^ "CDC - Facts about Lewisite". www.cdc.gov. Retrieved 2020-04-15.
  4. ^ "CDC - The Emergency Response Safety and Health Database: Blister Agent: LEWISITE (L) - NIOSH". www.cdc.gov. Retrieved 2016-01-14.

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