Phosphonic acid, ethyl-, dimethyl ester
- Formula: C4H11O3P
- Molecular weight: 138.1021
- IUPAC Standard InChI: InChI=1S/C4H11O3P/c1-4-8(5,6-2)7-3/h4H2,1-3H3
- IUPAC Standard InChIKey: YHQMSHVVGOSZEW-UHFFFAOYSA-N
- CAS Registry Number: 6163-75-3
- 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: Ethylphosphonic acid, dimethyl ester; Dimethyl ethylphosphonate; Ethylphosphonic acid, Me
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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 as indicated in comments:
AC - William E. Acree, Jr., James S. Chickos
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 70.1 | 348. | Stephenson and Malanowski, 1987 | Based on data from 333. - 410. K. See also Frazer, Gerrard, et al., 1955 and Boublik, Fried, et al., 1984.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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| Temperature (K) | A | B | C | Reference | Comment |
|---|---|---|---|---|---|
| 333.4 - 410. | 1.03481 | 245.386 | -266.417 | Kosolapoff, 1955 | Coefficents calculated by NIST from author's data. |
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.
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]
Frazer, Gerrard, et al., 1955
Frazer, M.J.; Gerrard, W.; Coulson, C.A.; Orgel, L.E.; Taylor, W.; Weiss, J.; Taylor, W.I.; Uyeo, S.; Yajima, H.; Kosolapoff, Gennady M.; McQuillin, F.J.; Stewart, J.; Henbest, H.B.; Owen, T.C.; Nayler, P.; Whiting, M.C.; Cadogan, J.I.G.,
Notes,
J. Chem. Soc., 1955, 2959, https://doi.org/10.1039/jr9550002959
. [all data]
Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E.,
The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]
Kosolapoff, 1955
Kosolapoff, G.M.,
Vapour Pressures and Densities of Some Lower Alkylphosphonates,
J. Chem. Soc., 1955, 2964-2965. [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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