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Nonanoic acid

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Phase change 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil526. ± 6.KAVGN/AAverage of 16 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus285. ± 1.KAVGN/AAverage of 6 values; Individual data points
Quantity Value Units Method Reference Comment
Ttriple285.53KN/ASchaake, van Miltenburg, et al., 1982Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC
Quantity Value Units Method Reference Comment
Tc712.KN/AAmbrose and Ghiassee, 1987Uncertainty assigned by TRC = 3. K; TRC
Tc709.58KN/AD'Souza and Teja, 1987Uncertainty assigned by TRC = 3. K; Ambrose's procedure; TRC
Quantity Value Units Method Reference Comment
Pc23.50barN/AAmbrose and Ghiassee, 1987Uncertainty assigned by TRC = 2.00 bar; TRC
Pc23.4636barN/AD'Souza and Teja, 1987Uncertainty assigned by TRC = 0.90 bar; Ambrose's procedure; TRC
Quantity Value Units Method Reference Comment
Deltavap82.4 ± 0.4kJ/molVBaccanari, Novinski, et al., 1968ALS
Deltavap82.4 ± 0.4kJ/molN/ABaccanari, Novinski, et al., 1968Based on data from 293. - 303. K.; AC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
76.9396.AStephenson and Malanowski, 1987Based on data from 381. - 528. K.; AC
85.3 ± 2.0304.ME,TEde Kruif, Schaake, et al., 1982Based on data from 292. - 313. K.; AC
64.2387. - 483.EBTrent, Miller, et al., 1960AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
410.0 - 450.2.54659773.594-235.239Kahlbaum, 1894Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
20.31285.5Acree, 1991AC

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
8.150263.0crystaline, IIcrystaline, ISchaake, van Miltenburg, et al., 1982, 2DH
19.823285.53crystaline, IliquidSchaake, van Miltenburg, et al., 1982, 2DH
5.560268.crystaline, IIcrystaline, IGarner and Randall, 1924DH
20.290285.5crystaline, IliquidGarner and Randall, 1924DH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
28.07263.0crystaline, IIcrystaline, ISchaake, van Miltenburg, et al., 1982, 2DH
69.42285.53crystaline, IliquidSchaake, van Miltenburg, et al., 1982, 2DH
20.7268.crystaline, IIcrystaline, IGarner and Randall, 1924DH
71.1285.5crystaline, IliquidGarner and Randall, 1924DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


References

Go To: Top, Phase change data, Notes

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

Schaake, van Miltenburg, et al., 1982
Schaake, R.C.F.; van Miltenburg, J.C.; De Kruif, C.G., Thermodynamic properties of the normal alkanoic acids. I. Molar heat capacities of seven odd-numbered normal alkanoic acids., J. Chem. Thermodyn., 1982, 14, 763. [all data]

Ambrose and Ghiassee, 1987
Ambrose, D.; Ghiassee, N.B., Vapor Pressures and Critical Temperatures and Critical Pressures of Some Alkanoic Acids: C1 to C10, J. Chem. Thermodyn., 1987, 19, 505. [all data]

D'Souza and Teja, 1987
D'Souza, R.; Teja, A.S., The prediction of the vapor pressures of carboxylic acids, Chem. Eng. Commun., 1987, 61, 13. [all data]

Baccanari, Novinski, et al., 1968
Baccanari, D.P.; Novinski, J.A.; Pan, Y.; Yevitz, M.M.; Swain, H.A., Jr., Heats of sublimation and vaporization at 25° of long chain fatty acids and methyl esters, Trans. Faraday Soc., 1968, 64, 1201. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

de Kruif, Schaake, et al., 1982
de Kruif, C.G.; Schaake, R.C.F.; van Miltenburg, J.C.; van der Klauw, K.; Blok, J.G., Thermodynamic properties of the normal alkanoic acids III. Enthalpies of vaporization and vapour pressures of 13 normal alkanoic acids, The Journal of Chemical Thermodynamics, 1982, 14, 8, 791-798, https://doi.org/10.1016/0021-9614(82)90176-8 . [all data]

Trent, Miller, et al., 1960
Trent, F.M.; Miller, F.D.; Brown, G.H., Some Physical Properties of Certain C 9 and C 10 Aliphatic Acids and their Methyl Esters.2-Ethylheptanoic and Pelargonic Acids, and Methyl Esters of 2-Ethylpentanoic,Pelargonic, 2, 5-Diethyladipic, 2-Ethylsuberic, and Sebacic Acids., J. Chem. Eng. Data, 1960, 5, 1, 110-111, https://doi.org/10.1021/je60005a026 . [all data]

Kahlbaum, 1894
Kahlbaum, G.W.A., Studien uber Dampfspannkraftsmessungen, Z. Phys. Chem. (Leipzig), 1894, 13, 14-55. [all data]

Acree, 1991
Acree, William E., Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation, Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H . [all data]

Schaake, van Miltenburg, et al., 1982, 2
Schaake, R.C.F.; van Miltenburg, J.C.; De Kruif, C.G., Thermodynamic properties of the normal alkanoic acids. I. Molar heat capacities of seven odd-numbered normal alkanoic acids, J. Chem. Thermodynam., 1982, 14, 763-769. [all data]

Garner and Randall, 1924
Garner, W.E.; Randall, F.C., Alternation in the heats of crystallization of the normal monobasic fatty acids. Part I., J. Chem. Soc., 1924, 125, 881-896. [all data]


Notes

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