Maleic acid

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Condensed phase 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Δfliquid-787.3 ± 1.7kJ/molChydFlitcroft, Skinner, et al., 1957Reanalyzed by Cox and Pilcher, 1970, Original value = -789.3 ± 0.4 kJ/mol; ALS
Quantity Value Units Method Reference Comment
Δfsolid-790.57 ± 0.71kJ/molCcbWilhoit and Shiao, 1964ALS
Δfsolid-787.76kJ/molCcbSchwabe and Wagner, 1958ALS
Δfsolid-789.52kJ/molCcbHuffman and Fox, 1938Author's hf298_condensed=-189.45 kcal/mol; ALS
Quantity Value Units Method Reference Comment
Δcsolid-1355.2 ± 0.67kJ/molCcbWilhoit and Shiao, 1964Corresponding Δfsolid = -790.52 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcsolid-1358.0kJ/molCcbSchwabe and Wagner, 1958Corresponding Δfsolid = -787.72 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcsolid-1356.2kJ/molCcbHuffman and Fox, 1938Author's hf298_condensed=-189.45 kcal/mol; Corresponding Δfsolid = -789.48 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
solid,1 bar159.4J/mol*KN/AParks and Huffman, 1930Extrapolation below 90 K, 50.63 J/mol*K.; DH

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
135.6294.4Parks and Huffman, 1930T = 91 to 294 K. Value is unsmoothed experimental datum.; DH

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.

Flitcroft, Skinner, et al., 1957
Flitcroft, T.; Skinner, H.A.; Whiting, M.C., Heats of hydrogenation Part 1.-Dodeca-3:9 and -5:7 Diynes, Trans. Faraday Soc., 1957, 53, 784-790. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Wilhoit and Shiao, 1964
Wilhoit, R.C.; Shiao, D., Thermochemistry of biologically important compounds. Heats of combustion of solid organic acids., J. Chem. Eng. Data, 1964, 9, 595-599. [all data]

Schwabe and Wagner, 1958
Schwabe, K.; Wagner, W., Verbrennungs-und bildungswarmen von fumar- und maleinsaure, Chem. Ber., 1958, 91, 686-689. [all data]

Huffman and Fox, 1938
Huffman, H.M.; Fox, S.W., Thermal data. X. The heats of combustion and free energies, at 25°, of some organic compounds concerned in carbohydrate metabolism, J. Am. Chem. Soc., 1938, 60, 1400-1403. [all data]

Parks and Huffman, 1930
Parks, G.S.; Huffman, H.M., Thermal data on organic compounds. IX. A study of the effect of unsaturation on the heat capacities, entropies and free energies of some hydrocarbons and other compounds, J. Am. Chem. Soc., 1930, 52, 4381-4391. [all data]


Notes

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