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Oxalic acid

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Reaction thermochemistry 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:
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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Individual Reactions

C2HO4- + Hydrogen cation = Oxalic acid

By formula: C2HO4- + H+ = C2H2O4

Quantity Value Units Method Reference Comment
Deltar324.2 ± 2.0kcal/molCIDCKumar, Prabhakar, et al., 2005gas phase; B
Quantity Value Units Method Reference Comment
Deltar316.3 ± 2.0kcal/molCIDCKumar, Prabhakar, et al., 2005gas phase; B

Ethanedioic acid, dimethyl ester + 2Water = Oxalic acid + 2Methyl Alcohol

By formula: C4H6O4 + 2H2O = C2H2O4 + 2CH4O

Quantity Value Units Method Reference Comment
Deltar4.165 ± 0.016kcal/molCmAnthoney, Finch, et al., 1975solid phase; solvent: Water; Hydrolysis; ALS

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.

Kumar, Prabhakar, et al., 2005
Kumar, M.R.; Prabhakar, S.; Nagaveni, V.; Vairamani, M., Estimation of gas-phase acidities of a series of dicarboxylic acids by the kinetic method, Rapid Commun. Mass Spectrom., 2005, 19, 8, 1053-1057, https://doi.org/10.1002/rcm.1888 . [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]


Notes

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