Diethyl methanephosphonate
- Formula: C5H13O3P
- Molecular weight: 152.1287
- IUPAC Standard InChI: InChI=1S/C5H13O3P/c1-4-7-9(3,6)8-5-2/h4-5H2,1-3H3
- 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
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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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔvapH° | 55.9 | kJ/mol | GS | Butrow, Buchanan, et al., 2009 | Based on data from 253. to 465. K. |
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 60.6 | 253. | GS | Butrow, Buchanan, et al., 2009 | Based on data from 253. to 465. K. |
| 57.2 | 283. | GS | Butrow, Buchanan, et al., 2009 | Based on data from 253. to 465. K. |
| 54.7 | 313. | GS | Butrow, Buchanan, et al., 2009 | Based on data from 253. to 465. K. |
| 53.4 | 333. | GS | Butrow, Buchanan, et al., 2009 | Based on data from 253. to 465. K. |
| 51.2 | 373. | GS | Butrow, Buchanan, et al., 2009 | Based on data from 253. to 465. K. |
| 51.8 | 358. | A | Stephenson and Malanowski, 1987 | Based on data from 343. to 402. K. See also Dykyj, 1972. |
References
Go To: Top, Phase change data, 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]
Notes
Go To: Top, Phase change data, 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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