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Undecanoic 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, M. Frenkel director
BS - R.L. Brown and S.E. Stein
AC - W.E. Acree, Jr., J.S. Chickos
ALS - H.Y. Afeefy, J.F. Liebman, and S.E. Stein
CAL - J.S. Chickos, W.E. Acree, Jr., J.F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
DH - E.S. Domalski and E.D. Hearing

QuantityValueUnitsMethodReferenceComment
Tboil438.15KN/AKomori and Agawa, 1954TRC
Tboil553.15KN/ALanglais and Goby, 1924Uncertainty assigned by TRC = 5. K; TRC
QuantityValueUnitsMethodReferenceComment
Tfus301.65KN/AGaikwad and Subrahmanyam, 1985Uncertainty assigned by TRC = 0.4 K; TRC
Tfus301.9KN/AAdriaanse, Dekker, et al., 1964Uncertainty assigned by TRC = 0.05 K; TRC
Tfus302.KN/ATimmermans, 1935Uncertainty assigned by TRC = 1.5 K; TRC
Tfus301.4KN/AGarner and Randall, 1924Crystal phase 1 phase; Uncertainty assigned by TRC = 0.2 K; TRC
Tfus301.2KN/AKrafft, 1882Uncertainty assigned by TRC = 3. K; TRC
QuantityValueUnitsMethodReferenceComment
Ttriple301.63KN/ASchaake, van Miltenburg, et al., 1982Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC
QuantityValueUnitsMethodReferenceComment
Tc731.26KN/AD'Souza and Teja, 1987Uncertainty assigned by TRC = 3. K; Ambrose's procedure; TRC
QuantityValueUnitsMethodReferenceComment
Pc20.0404barN/AD'Souza and Teja, 1987Uncertainty assigned by TRC = 0.90 bar; Ambrose's procedure; TRC
QuantityValueUnitsMethodReferenceComment
Deltasub121. ± 1.kJ/molVBaccanari, Novinski, et al., 1968ALS
Deltasub121.3 ± 1.3kJ/molMEBaccanari, Novinski, et al., 1968Based on data from 303. - 308. K. See also Cox and Pilcher, 1970.; AC

Reduced pressure boiling point

Tboil (K)Pressure (bar)ReferenceComment
501.20.213Aldrich Chemical Company Inc., 1990BS
437.20.020Weast and Grasselli, 1989BS

Enthalpy of vaporization

DeltavapH (kJ/mol)Temperature (K)MethodReferenceComment
81.3408.AStephenson and Malanowski, 1987Based on data from 393. - 557. K.; AC
90.7 ± 2.0323.ME,TEde Kruif, Schaake, et al., 1982Based on data from 310. - 332. K.; AC
97.9 ± 6.3305.N/ABaccanari, Novinski, et al., 1968Based on data from 303. - 308. K.; AC

Antoine Equation Parameters

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

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Temperature (K)ABCReferenceComment
374.6 - 563.5.070422640.792-42.034Stull, 1947Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kJ/mol)Temperature (K)ReferenceComment
25.98301.6Domalski and Hearing, 1996AC

Entropy of fusion

DeltafusS (J/mol*K)Temperature (K)ReferenceComment
28.03290.Domalski and Hearing, 1996CAL
86.15301.6

Enthalpy of phase transition

DeltaHtrs (kJ/mol)Temperature (K)Initial PhaseFinal PhaseReferenceComment
8.150290.3crystaline, IIcrystaline, ISchaake, van Miltenburg, et al., 1982, 2DH
25.980301.63crystaline, IliquidSchaake, van Miltenburg, et al., 1982, 2DH
7.700290.crystaline, IIcrystaline, IGarner and Randall, 1924, 2DH
25.100301.4crystaline, IliquidGarner and Randall, 1924, 2DH

Entropy of phase transition

DeltaStrs (J/mol*K)Temperature (K)Initial PhaseFinal PhaseReferenceComment
28.07290.3crystaline, IIcrystaline, ISchaake, van Miltenburg, et al., 1982, 2DH
86.13301.63crystaline, IliquidSchaake, van Miltenburg, et al., 1982, 2DH
26.6290.crystaline, IIcrystaline, IGarner and Randall, 1924, 2DH
83.3301.4crystaline, IliquidGarner and Randall, 1924, 2DH

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.

Komori and Agawa, 1954
Komori, S.; Agawa, T., Liver Oil of Laemonema Morosum Matsubara II. Studies on Docosenol Fractions, Nippon Kagaku Zasshi, 1954, 75, 1051. [all data]

Langlais and Goby, 1924
Langlais, P.; Goby, C. R. Hebd. Seances Acad. Sci., 1924, 179, 173. [all data]

Gaikwad and Subrahmanyam, 1985
Gaikwad, B.R.; Subrahmanyam, V.V., Melting behavior of fatty alcohols and their binary blends., J. Indian Chem. Soc., 1985, 62, 513. [all data]

Adriaanse, Dekker, et al., 1964
Adriaanse, N.; Dekker, H.; Coops, J., Some Physical Constants of Normal, Saturated Fatty Acids and Their Methyl Esters, Recl. Trav. Chim. Pays-Bas, 1964, 83, 557. [all data]

Timmermans, 1935
Timmermans, J., Researches in Stoichiometry. I. The Heat of Fusion of Organic Compounds., Bull. Soc. Chim. Belg., 1935, 44, 17-40. [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, 881-96. [all data]

Krafft, 1882
Krafft, F., On Nineteen Higher Normal Paraffins and a Simple Volume Law for Liquids that form Drops I., Ber. Dtsch. Chem. Ges., 1882, 15, 1687-711. [all data]

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]

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]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press Inc., London, 1970, 643. [all data]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987. [doi: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. [doi:10.1016/0021-9614(82)90176-8] [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540. [doi:10.1021/ie50448a022] [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1. [doi:10.1063/1.555985] [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, 2
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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