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Propanoic acid, 2-methyl-

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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 by: Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
43.43298.15Biros, Sikora, et al., 1982T = 270 to 370 K. Equation only. Cp = 130.1 - 0.08156 T + 0.0008541 T2 J/mol*K.
41.3298.15Konicek and Wadso, 1971 
40.89298.von Reis, 1881T = 291 to 448 K.

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
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

Iodide + Propanoic acid, 2-methyl- = (Iodide bullet Propanoic acid, 2-methyl-)

By formula: I- + C4H8O2 = (I- bullet C4H8O2)

Quantity Value Units Method Reference Comment
Deltar16.7 ± 1.0kcal/molTDAsCaldwell and Kebarle, 1984gas phase; B,M
Quantity Value Units Method Reference Comment
Deltar20.5cal/mol*KPHPMSCaldwell and Kebarle, 1984gas phase; M
Quantity Value Units Method Reference Comment
Deltar10.6 ± 1.0kcal/molTDAsCaldwell and Kebarle, 1984gas phase; B

iPrCO2 anion + Propanoic acid, 2-methyl- = (iPrCO2 anion bullet Propanoic acid, 2-methyl-)

By formula: C4H7O2- + C4H8O2 = (C4H7O2- bullet C4H8O2)

Quantity Value Units Method Reference Comment
Deltar29.9 ± 1.0kcal/molN/AMeot-Ner and Sieck, 1986gas phase; B,M
Quantity Value Units Method Reference Comment
Deltar33.4cal/mol*KPHPMSMeot-Ner and Sieck, 1986gas phase; M
Quantity Value Units Method Reference Comment
Deltar19.9 ± 1.6kcal/molTDAsMeot-Ner and Sieck, 1986gas phase; B

iPrCO2 anion + Hydrogen cation = Propanoic acid, 2-methyl-

By formula: C4H7O2- + H+ = C4H8O2

Quantity Value Units Method Reference Comment
Deltar346.0 ± 2.1kcal/molG+TSCaldwell, Renneboog, et al., 1989gas phase; B
Quantity Value Units Method Reference Comment
Deltar339.0 ± 2.0kcal/molIMRECaldwell, Renneboog, et al., 1989gas phase; B

Hydrogen + 2-Propenoic acid, 2-methyl- = Propanoic acid, 2-methyl-

By formula: H2 + C4H6O2 = C4H8O2

Quantity Value Units Method Reference Comment
Deltar-28.2 ± 0.3kcal/molChydSkinner and Snelson, 1959liquid phase; solvent: Acetic acid; ALS

Water + Propanoic acid, 2-methyl-, anhydride = 2Propanoic acid, 2-methyl-

By formula: H2O + C8H14O3 = 2C4H8O2

Quantity Value Units Method Reference Comment
Deltar-14.59kcal/molCmConn, Kistiakowsky, et al., 1942liquid phase; Heat of hydrolysis at 303 K; ALS

Methyl isobutyrate + Water = Methyl Alcohol + Propanoic acid, 2-methyl-

By formula: C5H10O2 + H2O = CH4O + C4H8O2

Quantity Value Units Method Reference Comment
Deltar-14.72 ± 0.24kcal/molEqkGuthrie and Cullimore, 1980liquid phase; ALS

References

Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Biros, Sikora, et al., 1982
Biros, J.; Sikora, A.; Zivny, A.; Pouchly, J., Heat capacity of monomer models of some hydrophilic polymers in aqueous solution from 20° to 60°C, Collect Czech. Chem. Commun., 1982, 47(10), 2692-2701. [all data]

Konicek and Wadso, 1971
Konicek, J.; Wadso, I., Thermochemical properties of some carboxylic acids, amines and N-substituted amides in aqueous solution, Acta Chem. Scand., 1971, 25, 1541-1551. [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]

Caldwell and Kebarle, 1984
Caldwell, G.; Kebarle, P., Binding energies and structural effects in halide anion-ROH and -RCOOH complexes from gas phase equilibria measurements, J. Am. Chem. Soc., 1984, 106, 967. [all data]

Meot-Ner and Sieck, 1986
Meot-Ner, M.; Sieck, L.W., The ionic hydrogen bond and ion solvation. 5. OH...O- bonds. Gas phase solvation and clustering of alkoxide and carboxylate anions, J. Am. Chem. Soc., 1986, 108, 7525. [all data]

Caldwell, Renneboog, et al., 1989
Caldwell, G.; Renneboog, R.; Kebarle, P., Gas Phase Acidities of Aliphatic Carboxylic Acids, Based on Measurements of Proton Transfer Equilibria, Can. J. Chem., 1989, 67, 4, 661, https://doi.org/10.1139/v89-092 . [all data]

Skinner and Snelson, 1959
Skinner, H.A.; Snelson, A., Heats of hydrogenation Part 3., Trans. Faraday Soc., 1959, 55, 405-407. [all data]

Conn, Kistiakowsky, et al., 1942
Conn, J.B.; Kistiakowsky, G.B.; Roberts, R.M.; Smith, E.A., Heats of organic reactions. XIII. Heats of hydrolysis of some acid anhydrides, J. Am. Chem. Soc., 1942, 64, 1747-17. [all data]

Guthrie and Cullimore, 1980
Guthrie, J.P.; Cullimore, P.A., Effect of the acyl substituent on the equilibrium constant for hydration of esters, Can. J. Chem., 1980, 58, 1281-1294. [all data]


Notes

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