Diethyl methanephosphonate
- Formula: C5H13O3P
- Molecular weight: 152.1287
- IUPAC Standard InChIKey: NYYLZXREFNYPKB-UHFFFAOYSA-N
- CAS Registry Number: 683-08-9
- 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: DEMP; Diethyl methylphosphonate; Phosphonic acid, methyl-, diethyl ester; Diethoxymethylphosphine oxide; O,O-Diethyl methylphosphonate; Methylphosphonic acid, diethyl ester
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Phase change data
Go To: Top, IR Spectrum, Gas Chromatography, References, Notes
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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔvapH° | 13.4 | kcal/mol | GS | Butrow, Buchanan, et al., 2009 | Based on data from 253. to 465. K. |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
14.5 | 253. | GS | Butrow, Buchanan, et al., 2009 | Based on data from 253. to 465. K. |
13.7 | 283. | GS | Butrow, Buchanan, et al., 2009 | Based on data from 253. to 465. K. |
13.1 | 313. | GS | Butrow, Buchanan, et al., 2009 | Based on data from 253. to 465. K. |
12.8 | 333. | GS | Butrow, Buchanan, et al., 2009 | Based on data from 253. to 465. K. |
12.2 | 373. | GS | Butrow, Buchanan, et al., 2009 | Based on data from 253. to 465. K. |
12.4 | 358. | A | Stephenson and Malanowski, 1987 | Based on data from 343. to 402. K. See also Dykyj, 1972. |
IR Spectrum
Go To: Top, Phase change data, Gas Chromatography, References, Notes
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Chromatography
Go To: Top, Phase change data, IR Spectrum, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | OV-1 | 975. | Kostiainen, 2000 | 15. m/0.32 mm/0.25 μm, He, 50. C @ 2. min, 10. K/min, 280. C @ 10. min |
Capillary | SE-54 | 1006.5 | Kostiainen, 2000 | 25. m/0.32 mm/0.25 μm, He, 40. C @ 1. min, 10. K/min, 280. C @ 10. min |
Capillary | SE-54 | 1015. | Kostiainen, 2000 | 25. m/0.32 mm/0.25 μm, He, 40. C @ 1. min, 10. K/min, 280. C @ 10. min |
Capillary | DB-1 | 975. | D'agostino, Provost, et al., 1987 | 15. m/0.32 mm/0.25 μm, He, 50. C @ 2. min, 10. K/min, 280. C @ 10. min |
Capillary | DB-5 | 1006.5 | D'agostino, Provost, et al., 1987 | 15. m/0.32 mm/0.25 μm, He, 50. C @ 2. min, 10. K/min, 280. C @ 10. min |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5 | 975. | Savel'eva, Zenkevich, et al., 2003 | 25. m/0.20 mm/0.33 μm, Helium, 40. C @ 1. min, 5. K/min, 270. C @ 15. min |
Capillary | SE-54 | 1015.1 | Söderström, Ketola, et al., 1995 | 25. m/0.32 mm/0.25 μm, He, 40. C @ 2. min, 10. K/min, 250. C @ 10. min |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | 5 % Phenyl methyl siloxane | 1015. | OPCW, 1997 | Program: not specified |
References
Go To: Top, Phase change data, IR Spectrum, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Butrow, Buchanan, et al., 2009
Butrow, Ann B.; Buchanan, James H.; Tevault, David E.,
Vapor Pressure of Organophosphorus Nerve Agent Simulant Compounds,
J. Chem. Eng. Data, 2009, 54, 6, 1876-1883, https://doi.org/10.1021/je8010024
. [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, 1972
Dykyj, J.,
Petrochemia, 1972, 12, 1, 13. [all data]
Kostiainen, 2000
Kostiainen, O.,
Gas Chromatography in Screening of Chemicals Related to the Chemical Weapons Convention
in Encyclopedia of Analytical Chemistry, Meyers, R.A., ed(s)., John Wiley Sons Ltd, Chichester, 2000, 963-979. [all data]
D'agostino, Provost, et al., 1987
D'agostino, P.A.; Provost, L.R.; Visentini, J.,
Analysis of O-Ethyl S-[2-(Diisopropylamino)ethyl] Methylphosphonothiolate (VX) by Capillary Column Gas Chromatography-Mass Spectrometry,
J. Chromatogr., 1987, 402, 221-232, https://doi.org/10.1016/0021-9673(87)80020-1
. [all data]
Savel'eva, Zenkevich, et al., 2003
Savel'eva, E.I.; Zenkevich, I.G.; Radilov, A.S.,
Identification the Products of Chemical Neutralization of O-Isobutyl-S-(2-diethylaminoethyl)methylthiophosphonate in the Composition of Bitumen-Salt Matrices,
Zh. Anal. Khim. (Rus.), 2003, 58, 2, 135-145. [all data]
Söderström, Ketola, et al., 1995
Söderström, M.T.; Ketola, R.A.; Kostiainen, O.,
Identification of some nerve agent homologues and dialkyl methylphosphonates by gas chromatography/Fourier transform infrared spectrometry. Part II. Spectral search with the help of retention indices,
Fresenius J. Anal. Chem., 1995, 352, 6, 550-556, https://doi.org/10.1007/BF00323072
. [all data]
OPCW, 1997
OPCW,
Conference of the States Parties C-I/DEC.64 (22 May 1997), 1997, retrieved from http://www.opcw.org/html/global/cseries/csp1/CIDEC64.html. [all data]
Notes
Go To: Top, Phase change data, IR Spectrum, Gas Chromatography, References
- Symbols used in this document:
ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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