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Formic 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
Deltafliquid-425.09kJ/molCmGuthrie, 1974Heat of hydrolysis; ALS
Deltafliquid-425.5 ± 0.3kJ/molCcbLebedeva, 1964ALS
Deltafliquid-424.8 ± 0.3kJ/molCcbSinke, 1959ALS
Quantity Value Units Method Reference Comment
Deltacliquid-253.8 ± 0.3kJ/molCcbLebedeva, 1964Corresponding «DELTA»fliquid = -425.51 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-254.6 ± 0.3kJ/molCcbSinke, 1959Corresponding «DELTA»fliquid = -424.72 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid131.84J/mol*KN/AStout and Fisher, 1941Includes 2.89 J/mol*K for zero-point entropy.; DH
liquid128.4J/mol*KN/AParks, Kelley, et al., 1929Extrapolation below 90 K, 29.7 J/mol*K. Revision of previous data.; DH
liquid143.1J/mol*KN/AGibson, Latimer, et al., 1920Used Berthelot's value, 10125 J/mol for H fusion. Extrapolation below 70 K, no details.; DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
99.04298.15Stout and Fisher, 1941T = 15 to 300 K.; DH
98.10298.15Glagoleva and Chervov, 1936Temperature range: 298.15, 333.15, 353.15 K.; DH
100.0290.Radulescu and Jula, 1934DH
98.3291.5Gibson, Latimer, et al., 1920T = 71 to 292 K. Value is unsmoothed experimental datum.; DH
95.4298.von Reis, 1881T = 291 to 385 K.; DH

References

Go To: Top, 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.

Guthrie, 1974
Guthrie, J.P., Hydration of carboxamides. Evaluation of the free energy change for addition of water to acetamide and formamide derivatives, J. Am. Chem. Soc., 1974, 96, 3608-3615. [all data]

Lebedeva, 1964
Lebedeva, N.D., Heats of combustion of monocarboxylic acids, Russ. J. Phys. Chem. (Engl. Transl.), 1964, 38, 1435-1437. [all data]

Sinke, 1959
Sinke, G.C., The heat of formation of formic acid, J. Phys. Chem., 1959, 63, 2063. [all data]

Stout and Fisher, 1941
Stout, J.W.; Fisher, L.H., The entropy of formic acid. The heat capacity from 15 to 300K. Heats of fusion and vaporization, J. Chem. Phys., 1941, 9, 163-168. [all data]

Parks, Kelley, et al., 1929
Parks, G.S.; Kelley, K.K.; Huffman, H.M., Thermal data on organic compounds. V. A revision of the entropies and free energies of nineteen organic compounds, J. Am. Chem. Soc., 1929, 51, 1969-1973. [all data]

Gibson, Latimer, et al., 1920
Gibson, G.E.; Latimer, W.M.; Parks, G.S., Entropy changes at low temperatures. I. Formic acid and urea. A test of the third law of thermodynamics, J. Am. Chem. Soc., 1920, 42, 1533-1542. [all data]

Glagoleva and Chervov, 1936
Glagoleva, A.A.; Chervov, S.I., Investigation of the heat capacity of formic acid and its aqueous solutions, Zhur. Obshch. Khim., 1936, 6, 685-690. [all data]

Radulescu and Jula, 1934
Radulescu, D.; Jula, O., Beiträge zur Bestimmung der Abstufung der Polarität des Aminstickstoffes in den organischen Verbindungen, Z. Phys. Chem., 1934, B26, 390-393. [all data]

von Reis, 1881
von Reis, M.A., Die specifische Wärme flüssiger organischer Verbindungen und ihre Beziehung zu deren Moleculargewicht, Ann. Physik [3], 1881, 13, 447-464. [all data]


Notes

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