QL (chemical)

QL
Names
IUPAC name
N-[2-(ethoxy(methyl)phosphanyl)oxyethyl]-N-isopropyl-propan-2-amine
Other names
Isopropyl aminoethylmethyl phosphonite, O-(2-diisopropylaminoethyl) O'-ethyl methylphosphonite
Identifiers
3D model (JSmol)
Abbreviations QL
ChemSpider
Properties
C11H26NO2P
Molar mass 235.303
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

Isopropyl aminoethylmethyl phosphonite (NATO designation QL), also known as O-(2-diisopropylaminoethyl) O'-ethyl methylphosphonite, is a precursor chemical to the nerve agent VX.

Uses in chemical warfare

QL is a component in binary chemical weapons, mainly VX nerve agent.[1] It, along with Methylphosphonyl difluoride (DF), was developed during the 1980s in order to replace an aging stockpile of unitary chemical weapons.[1] QL is listed as a "Schedule One" chemical by the Chemical Weapons Convention.[2]

Toxicity

QL itself is a relatively non-toxic chemical.[3] However, when reacting with sulfur, the corresponding sulphide of QL isomerizes into the highly toxic VX molecule.[1][3]

References

  1. 1 2 3 National Research Council, et al. Systems and Technologies for the Treatment of Non-stockpile Chemical Warfare Materiel, (Google Books), National Academies Press, 2002, p. 14, (ISBN 0309084520), accessed October 21, 2008.
  2. ↑ "Schedule One Chemicals", Chemical Weapons Convention, US Government website, Retrieved November 15, 2008.
  3. 1 2 Croddy, Eric and Wirtz, James J. Weapons of Mass Destruction: An Encyclopedia of Worldwide Policy, Technology, and History, (Google Books), ABC-CLIO, 2005, p. 238, (ISBN 1851094903), accessed October 21, 2008.
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