Ethanedioic acid, dimethyl ester
- Formula: C4H6O4
- Molecular weight: 118.0880
- IUPAC Standard InChI: InChI=1S/C4H6O4/c1-7-3(5)4(6)8-2/h1-2H3
- IUPAC Standard InChIKey: LOMVENUNSWAXEN-UHFFFAOYSA-N
- CAS Registry Number: 553-90-2
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Oxalic acid, dimethyl ester; Dimethyl oxalate; Methyl oxalate; CH3OCOCOOCH3; Dimethyl ester of oxalic acid; Ethanedioc acid dimethyl ester
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, References, Notes
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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -709.27 ± 0.54 | kJ/mol | Ccb | Anthoney, Carson, et al., 1976 | See Anthoney, Carson, et al., 1975; ALS |
| ΔfH°gas | -709.7 | kJ/mol | N/A | Anthoney, Finch, et al., 1975 | Value computed using ΔfHsolid° value of -756.7±0.3 kj/mol from Anthoney, Finch, et al., 1975 and ΔsubH° value of 47.0 kj/mol from Anthoney, Carson, et al., 1976.; DRB |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°solid | -756.30 ± 0.84 | kJ/mol | Ccb | Anthoney, Carson, et al., 1976 | See Anthoney, Carson, et al., 1975 |
| ΔfH°solid | -756.73 ± 0.31 | kJ/mol | Cm | Anthoney, Finch, et al., 1975 | Hydrolysis |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -1675.2 ± 0.63 | kJ/mol | Ccb | Anthoney, Carson, et al., 1976 | See Anthoney, Carson, et al., 1975; Corresponding ΔfHºsolid = -756.30 kJ/mol (simple calculation by NIST; no Washburn corrections) |
| ΔcH°solid | -1677. | kJ/mol | Ccb | Verkade, Coops, et al., 1926 | Heat of combustion at 15°C; Corresponding ΔfHºsolid = -754.4 kJ/mol (simple calculation by NIST; no Washburn corrections) |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Anthoney, Carson, et al., 1976
Anthoney, M.E.; Carson, A.S.; Laye, P.G.; Yrekli, M.,
The enthalpy of formation of dimethyl oxalate,
J. Chem. Thermodyn., 1976, 8, 1009-1010. [all data]
Anthoney, Carson, et al., 1975
Anthoney, M.E.; Carson, A.S.; Laye, P.G.,
The thermochemistry of formates and oxalates,
Conf. Int. Thermodyn. Chim. C.R. 4th, 1975, 1, 99-103. [all data]
Anthoney, Finch, et al., 1975
Anthoney, M.E.; Finch, A.; Stephens, M.,
The solution of dimethyl oxalate and oxalic acid in water and alkali. Standard enthalpy of formation of dimethyl oxalate,
Thermochim. Acta, 1975, 12, 427-431. [all data]
Verkade, Coops, et al., 1926
Verkade, P.E.; Coops, J.; Hartman, H.,
Calorimetric researches. XIII. Heats of combustion of successive terms of homologous series: Dimethyl esters of the oxalic acid series. A general survey of the oscillation phenomena,
Recl. Trav. Chim. Pays-Bas, 1926, 45, 585-606. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, References
- Symbols used in this document:
ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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