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Phthalic anhydride

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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
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Tboil557.2KN/AAldrich Chemical Company Inc., 1990BS
Tboil558.25KN/ABurriel, 1931Uncertainty assigned by TRC = 0.3 K; TRC
Tboil557.83KN/ABurriel, 1931Uncertainty assigned by TRC = 0.3 K; TRC
Quantity Value Units Method Reference Comment
Tfus404. ± 3.KAVGN/AAverage of 10 values; Individual data points
Quantity Value Units Method Reference Comment
Deltasub88.7 ± 2.3kJ/molVCrooks and Freetham, 1946ALS

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
52.1422.AStephenson and Malanowski, 1987Based on data from 407. - 558. K.; AC
63.9 ± 2.5422.GSDas, Dharwadkar, et al., 1979Based on data from 411. - 450. K.; AC
54.1521.N/AMonroe, 1920Based on data from 485. - 557. K.; 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
369.7 - 557.73.107621249.606-159.288Stull, 1947Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

DeltasubH (kJ/mol) Temperature (K) Method Reference Comment
87.9348.AStephenson and Malanowski, 1987Based on data from 313. - 383. K. See also Amitin, Vakurova, et al., 1972.; AC
84.4 ± 1.2388.GSDas, Dharwadkar, et al., 1979Based on data from 333. - 403. K.; AC
88.4 ± 1.2318.N/ACrooks and Feetham, 1946Based on data from 303. - 333. K. See also Cox and Pilcher, 1970 and Jones, 1960.; AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Method Reference Comment
23.09403.3DSCAcree, 1991See also Donnelly, Drewes, et al., 1990.; AC
22.1404.5DSCDas, Dharwadkar, et al., 1979AC

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.

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

Burriel, 1931
Burriel, F., Physico-Chemical Study of Some Solid Organic Compounds at Ordinary Temperatures, and Their COrrelationo with Temperature, An. R. Soc. Esp. Fis. Quim., 1931, 29, 89. [all data]

Crooks and Freetham, 1946
Crooks, D.A.; Freetham, F.M., The vapour pressure of phthalic anhydride, J. Chem. Soc., 1946, 899-901. [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]

Das, Dharwadkar, et al., 1979
Das, D.; Dharwadkar, S.R.; Chandrasekharaiah, M.S., Vapour pressure of phthalic anhydride, Thermochimica Acta, 1979, 30, 1-2, 371-376, https://doi.org/10.1016/0040-6031(79)85076-5 . [all data]

Monroe, 1920
Monroe, K.P., Phthalic Anhydride. IV---The Vapor Pressure of Phthalic Anhydride, J. Ind. Eng. Chem., 1920, 12, 10, 969-971, https://doi.org/10.1021/ie50130a013 . [all data]

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

Amitin, Vakurova, et al., 1972
Amitin, A.V.; Vakurova, E.A.; Katunin, V.Kh.; Afanas'eva, N.S., Zh. Fiz. Khim., 1972, 46, 4, 1054. [all data]

Crooks and Feetham, 1946
Crooks, D.A.; Feetham, F.M., 196. The vapour pressure of phthalic anhydride, J. Chem. Soc., 1946, 899, https://doi.org/10.1039/jr9460000899 . [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]

Jones, 1960
Jones, A.H., Sublimation Pressure Data for Organic Compounds., J. Chem. Eng. Data, 1960, 5, 2, 196-200, https://doi.org/10.1021/je60006a019 . [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]

Donnelly, Drewes, et al., 1990
Donnelly, J.R.; Drewes, L.A.; Johnson, R.L.; Munslow, W.D.; Knapp, K.K.; Sovocool, G.W., Purity and heat of fusion data for environmental standards as determined by differential scanning calorimetry, Thermochimica Acta, 1990, 167, 2, 155-187, https://doi.org/10.1016/0040-6031(90)80476-F . [all data]


Notes

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