QL (chemical)

QL
Names
	Preferred IUPAC name 2-[Di(propan-2-yl)amino]ethyl ethyl methylphosphonite
	Other names 2-(Diisopropylamino)ethyl ethyl methylphosphonite; N-[2-(Ethoxy(methyl)phosphanyl)oxyethyl]-N-isopropyl-propan-2-amine; Isopropyl aminoethylmethyl phosphonite; O-(2-diisopropylaminoethyl) O'-ethyl methylphosphonite
Identifiers
3D model (JSmol)	Interactive image;
Abbreviations	QL
ChemSpider	148925 ;
PubChem CID	170325;
	InChI InChI=1S/C11H26NO2P/c1-7-13-15(6)14-9-8-12(10(2)3)11(4)5/h10-11H,7-9H2,1-6H3 Key: OIQVKKOBTVZIFE-UHFFFAOYSA-N ; InChI=1/C11H26NO2P/c1-7-13-15(6)14-9-8-12(10(2)3)11(4)5/h10-11H,7-9H2,1-6H3 Key: OIQVKKOBTVZIFE-UHFFFAOYAN;
	SMILES O(P(OCCN(C(C)C)C(C)C)C)CC;
Properties
Chemical formula	C11H26NO2P
Molar mass	235.303
Appearance	Colorless liquid
Odor	Strong fishy odor
Boiling point	230°C
Solubility in water	Slightly soluble in water
	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. It is a colorless liquid with a strong fishy odor, and is slightly soluble in water. ^[1]

Synthesis

QL is manufactured by reacting diethyl methylphosphonite with 2-(Diethylamino)ethanol.^[2]

Uses in chemical warfare

QL is a component in binary chemical weapons, mainly VX nerve agent.^[3] It, along with methylphosphonyl difluoride (DF), was developed during the 1980s in order to replace an aging stockpile of unitary chemical weapons.^[3] QL is listed as a "Schedule One" chemical by the Chemical Weapons Convention.^[4]

Toxicity

QL itself is a relatively non-toxic chemical.^[5] However, when reacting with sulfur, the corresponding sulphide of QL isomerizes into the highly toxic VX molecule.^[3]^[5]

References

↑ https://pubchem.ncbi.nlm.nih.gov/compound/170325#section=Experimental-Properties
↑ https://pubchem.ncbi.nlm.nih.gov/compound/170325#section=Use-and-Manufacturing
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.
↑ "Schedule One Chemicals", Chemical Weapons Convention, US Government website, Retrieved November 15, 2008.
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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[1] ttps://pubchem.ncbi.nlm.nih.gov/compound/170325#section=Experimental-Properties

[2] ttps://pubchem.ncbi.nlm.nih.gov/compound/170325#section=Use-and-Manufacturing

[nrc-3] 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.

[uscwc-4] "Schedule One Chemicals", Chemical Weapons Convention, US Government website, Retrieved November 15, 2008.

[croddy-5] 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.