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Naphthalene, 2,6-dimethyl-

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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
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil536. ± 6.KAVGN/AAverage of 7 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus387.4KN/AKotula and Rabczuk, 1985Uncertainty assigned by TRC = 2. K; TRC
Tfus383.27KN/ASzafranski, 1984Uncertainty assigned by TRC = 0.1 K; TRC
Tfus383.9KN/ASmith, 1980Uncertainty assigned by TRC = 0.2 K; TRC
Tfus384.15KN/ALuther and Riechel, 1950Uncertainty assigned by TRC = 0.5 K; TRC
Tfus336.KN/ALinstead, Millidge, et al., 1937Uncertainty assigned by TRC = 4. K; TRC
Quantity Value Units Method Reference Comment
Ttriple383.31KN/AFinke, Messerly, et al., 1977Uncertainty assigned by TRC = 0.02 K; TRC
Ttriple383.31KN/AOsborn and Douslin, 1975Uncertainty assigned by TRC = 0.03 K; TRC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
57.3399.AStephenson and Malanowski, 1987Based on data from 384. - 418. K. See also Osborn and Douslin, 1975, 2 and Boublik, Fried, et al., 1984.; AC
57.4383.IPFinke, Messerly, et al., 1977, 2Based on data from 384. - 418. K.; AC
56.6400.IPFinke, Messerly, et al., 1977, 2Based on data from 384. - 418. K.; AC
55.7420.IPFinke, Messerly, et al., 1977, 2Based on data from 384. - 418. 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
384. - 418.3.148311302.791-135.652Osborn and Douslin, 1975, 2Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

DeltasubH (kJ/mol) Temperature (K) Method Reference Comment
84.4 ± 1.9366.N/AFinke, Messerly, et al., 1977, 2Based on data from 350. - 383. K. See also Osborn and Douslin, 1975, 2 and Stephenson and Malanowski, 1987.; AC
82.5383.BOsborn and Douslin, 1975, 2AC
84.0 ± 0.4379.2VAihara, 1959crystal phase; ALS
84.1291.VAihara, 1959, 2Based on data from 279. - 304. K. See also Stephenson and Malanowski, 1987.; AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Method Reference Comment
25.0567383.32N/AFinke, Messerly, et al., 1977, 2DH
25.3385.2DSCCheon and Kim, 2007AC
25.06383.3N/AAcree, 1991AC

Entropy of fusion

DeltafusS (J/mol*K) Temperature (K) Reference Comment
65.37383.32Finke, Messerly, et al., 1977, 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.

Kotula and Rabczuk, 1985
Kotula, I.; Rabczuk, A., DTA Investigation of the Solid-Liquid Equilibrium for Mehtyl Derivatives of Naphthalene with Some Nitroaromatics, J. Therm. Anal., 1985, 30, 195. [all data]

Szafranski, 1984
Szafranski, A.M., Solid-Liquid Equilibrium, Int. DATA Ser., Sel. Data Mixtures, Ser. A, 1984, No. 1, 40-50. [all data]

Smith, 1980
Smith, G.W., Phase behavior of some condensed polycyclic aromatics, Mol. Cryst. Liq. Cryst., 1980, 64, 15. [all data]

Luther and Riechel, 1950
Luther, H.; Riechel, C., The Raman Spectra of Polymethylnphthalenes, Z. Phys. Chem. (Leipzig), 1950, 195, 103. [all data]

Linstead, Millidge, et al., 1937
Linstead; Millidge; Walpole, J. Chem. Soc., 1937, 1937, 1140. [all data]

Finke, Messerly, et al., 1977
Finke, H.L.; Messerly, J.F.; Lee, S.H.; Osborn, A.G.; Douslin, D.R., Comprehensive thermodynamic studies of seven aromatic hydrocarbons, J. Chem. Thermodyn., 1977, 9, 937. [all data]

Osborn and Douslin, 1975
Osborn, A.G.; Douslin, D.R., Vapor Pressure and Derived Enthalpies of Vaporization for Some Condensed Ring Hydrocarbons, J. Chem. Eng. Data, 1975, 20, 229-31. [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]

Osborn and Douslin, 1975, 2
Osborn, Ann G.; Douslin, Donald R., Vapor pressures and derived enthalpies of vaporization for some condensed-ring hydrocarbons, J. Chem. Eng. Data, 1975, 20, 3, 229-231, https://doi.org/10.1021/je60066a022 . [all data]

Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E., The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]

Finke, Messerly, et al., 1977, 2
Finke, H.L.; Messerly, J.F.; Lee, S.H.; Osborn, A.G.; Douslin, D.R., Comprehensive thermodynamic studies of seven aromatic hydrocarbons, J. Chem. Thermodyn., 1977, 9, 937-956. [all data]

Aihara, 1959
Aihara, A., Estimation of the energy of hydrogen bonds formed in crystals. I. Sublimation pressures of some organic molecular crystals and the additivity of lattice energy, Bull. Chem. Soc. Jpn., 1959, 32, 1242. [all data]

Aihara, 1959, 2
Aihara, Ariyuki, Estimation of the Energy of Hydrogen Bonds Formed in Crystals. I. Sublimation Pressures of Some Organic Molecular Crystals and the Additivity of Lattice Energy, Bull. Chem. Soc. Jpn., 1959, 32, 11, 1242-1248, https://doi.org/10.1246/bcsj.32.1242 . [all data]

Cheon and Kim, 2007
Cheon, Yang-Ho; Kim, Kwang-Joo, Solid-Liquid Equilibria of Binary Mixtures of Dimethylnaphthalene Isomers, J. Chem. Eng. Data, 2007, 52, 4, 1390-1393, https://doi.org/10.1021/je700088n . [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]


Notes

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