VX
- Formula: C11H26NO2PS
- Molecular weight: 267.368
- IUPAC Standard InChI: InChI=1S/C11H26NO2PS/c1-7-14-15(6,13)16-9-8-12(10(2)3)11(4)5/h10-11H,7-9H2,1-6H3
- IUPAC Standard InChIKey: JJIUCEJQJXNMHV-UHFFFAOYSA-N
- CAS Registry Number: 50782-69-9
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Phosphonothioic acid, methyl-, S-[2-[bis(1-methylethyl)amino]ethyl] O-ethyl ester; O-Ethyl S-(2-diisopropylaminoethyl) methylphosphonothioate; O-Ethyl S-(2-diisopropylaminoethyl) methylthiophosphonate; Tx 60; O-Ethyl S-2-diisopropylaminoethyl methylphosphonothiolate; S-[2-(Diisopropylamino)ethyl] o-ethyl methylphosphonothioate; Methyl-phosphonothioic acid S-(2-diisopropylamino-ethyl) ester O-ethyl ester; Phosphonohioic acid, methyl, O-ethyl-S-(2-diisopropylaminoethyl) ester; Phosphonothioic acid, P-methyl-, S-(2-(bis(1-methylethyl)amino)ethyl) O-ethyl ester; VX agent; Methylthiophosphonic acid, O-ethyl-S-[2-(N,N-diisopropylamino)ethyl] ester
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Phase change data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: William E. Acree, Jr., James S. Chickos
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 18.6 | 323. | GC | Rittfeldt, 2001 | Based on data from 261. to 385. K. |
| 24.1 | 295. | A | Stephenson and Malanowski, 1987 | Based on data from 280. to 315. K. See also Dykyj, Svoboda, et al., 1999 and Frostling, Åse, et al., 1974. |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Rittfeldt, 2001
Rittfeldt, Lars,
Determination of Vapor Pressure of Low-Volatility Compounds Using a Method To Obtain Saturated Vapor with Coated Capillary Columns,
Anal. Chem., 2001, 73, 11, 2405-2411, https://doi.org/10.1021/ac010015v
. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Dykyj, Svoboda, et al., 1999
Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.L.; Hall, K.R.,
Vapor Pressure of Chemicals: Part A. Vapor Pressure and Antoine Constants for Hydrocarbons and Sulfur, Selenium, Tellurium and Hydrogen Containing Organic Compounds, Springer, Berlin, 1999, 373. [all data]
Frostling, Åse, et al., 1974
Frostling, Harald; Åse, Kjell; Borgan, A.; Østvold, Terje; Bjørseth, Alf; Powell, D.L.,
The Vapour Pressure of O-Ethyl,S-2-(N,N-diisopropylamino)-ethylmethylphosphonothioate.,
Acta Chem. Scand., 1974, 28a, 83-85, https://doi.org/10.3891/acta.chem.scand.28a-0083
. [all data]
Notes
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- Symbols used in this document:
ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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