Azelaic 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, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tfus379.7KN/AKhetarpal, Lal, et al., 1980Uncertainty assigned by TRC = 1. K; TRC
Tfus380.0KN/ACingolani and Berchiesi, 1974Uncertainty assigned by TRC = 0.5 K; TRC
Quantity Value Units Method Reference Comment
Deltavap119.7 ± 0.8kJ/molCGCRoux, Temprado, et al., 2005Based on data from 434. - 503. K.; AC
Quantity Value Units Method Reference Comment
Deltasub159.9 ± 1.0kJ/molMERibeiro da Silva, Monte, et al., 1999Based on data from 367. - 377. K.; AC

Reduced pressure boiling point

Tboil (K) Pressure (bar) Reference Comment
560.20.133Weast and Grasselli, 1989BS

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
89.3466.AStephenson and Malanowski, 1987Based on data from 451. - 630. K. See also Stull, 1947.; AC

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
451.5 - 629.76.103113396.636-73.11Stull, 1947Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

DeltasubH (kJ/mol) Temperature (K) Method Reference Comment
178. ± 5.348. - 373.TPDCappa, Lovejoy, et al., 2007AC
138.294. - 311.TPTDChattopadhyay and Ziemann, 2005Values based on TPTD method are not consistent with values determined by other experimental methods; AC
156.2 ± 0.5372.MERibeiro da Silva, Monte, et al., 1999Based on data from 367. - 377. K.; AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Method Reference Comment
32.677380.0N/ACingolani and Berchiesi, 1974DH
35.3375.6DSCChen, Xia, et al., 2009Authors explicitly state in the manuscript that no solid-solid phase transition was observed; AC
29.7372.4DSCRoux, Temprado, et al., 2005AC
32.67380.N/AAcree, 1991AC

Entropy of fusion

DeltafusS (J/mol*K) Temperature (K) Reference Comment
85.98380.0Cingolani and Berchiesi, 1974DH

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:


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.

Khetarpal, Lal, et al., 1980
Khetarpal, S.C.; Lal, K.; Bhatnagar, H.I., Indian J. Chem., Sect. A:Inorg., Phys., Theor. Anal., 1980, 19A, 516. [all data]

Cingolani and Berchiesi, 1974
Cingolani, A.; Berchiesi, G., Thermodynamic properties of organic compounds. 1. A DSC study of phase transitions in aliphatic dicarboxylic acids, J. Therm. Anal., 1974, 6, 87-90. [all data]

Roux, Temprado, et al., 2005
Roux, Maria Victoria; Temprado, Manuel; Chickos, James S., Vaporization, fusion and sublimation enthalpies of the dicarboxylic acids from C4 to C14 and C16, The Journal of Chemical Thermodynamics, 2005, 37, 9, 941-953, . [all data]

Ribeiro da Silva, Monte, et al., 1999
Ribeiro da Silva, Manuel A.V.; Monte, Manuel J.S.; Ribeiro, José R., Vapour pressures and the enthalpies and entropies of sublimation of five dicarboxylic acids, The Journal of Chemical Thermodynamics, 1999, 31, 8, 1093-1107, . [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, . [all data]

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

Cappa, Lovejoy, et al., 2007
Cappa, Christopher D.; Lovejoy, Edward R.; Ravishankara, A.R., Determination of Evaporation Rates and Vapor Pressures of Very Low Volatility Compounds: A Study of the C 4 -C 10 and C 12 Dicarboxylic Acids, J. Phys. Chem. A, 2007, 111, 16, 3099-3109, . [all data]

Chattopadhyay and Ziemann, 2005
Chattopadhyay, Sulekha; Ziemann, Paul J., Vapor Pressures of Substituted and Unsubstituted Monocarboxylic and Dicarboxylic Acids Measured Using an Improved Thermal Desorption Particle Beam Mass Spectrometry Method, Aerosol Science and Technology, 2005, 39, 11, 1085-1100, . [all data]

Chen, Xia, et al., 2009
Chen, Su-ning; Xia, Qing; Li, Dong; Yuan, Wei-Guang; Zhang, Feng-Bao; Zhang, Guo-Liang, Solid-Liquid Equilibria of Nonanedioic Acid in Binary Ethanol + Water Solvent Mixtures from (292.35 to 345.52) K, J. Chem. Eng. Data, 2009, 54, 4, 1395-1399, . [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, . [all data]


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