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Benzene, propyl-

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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
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil432. ± 2.KAVGN/AAverage of 41 out of 46 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus173. ± 2.KAVGN/AAverage of 16 values; Individual data points
Quantity Value Units Method Reference Comment
Ttriple173.59KN/AMesserly, Todd, et al., 1965Crystal phase 1 phase; Uncertainty assigned by TRC = 0.01 K; TRC
Ttriple171.6KN/AMesserly, Todd, et al., 1965Metastable crystal phase; Uncertainty assigned by TRC = 0.01 K; TRC
Quantity Value Units Method Reference Comment
Tc638.4 ± 0.1KN/ATsonopoulos and Ambrose, 1995 
Tc638.24KN/AAmbrose, Broderick, et al., 1967Uncertainty assigned by TRC = 0.1 K; TRC
Tc638.36KN/AAmbrose, Cox, et al., 1960Uncertainty assigned by TRC = 0.3 K; Visual, PRT, IPTS-48; TRC
Tc639.2KN/ASimon, 1957Uncertainty assigned by TRC = 0.4 K; TRC
Tc638.8KN/AAltschul, 1893Uncertainty assigned by TRC = 0.6 K; TRC
Quantity Value Units Method Reference Comment
Pc32.00 ± 0.10barN/ATsonopoulos and Ambrose, 1995 
Pc32.00barN/AAmbrose, Broderick, et al., 1967Uncertainty assigned by TRC = 0.06 bar; TRC
Pc31.70barN/AAltschul, 1893Uncertainty assigned by TRC = 0.049 bar; TRC
Quantity Value Units Method Reference Comment
Vc0.440l/molN/ATsonopoulos and Ambrose, 1995 
Quantity Value Units Method Reference Comment
rhoc2.27 ± 0.010mol/lN/ATsonopoulos and Ambrose, 1995 
rhoc2.269mol/lN/ASimon, 1957Uncertainty assigned by TRC = 0.03 mol/l; TRC
Quantity Value Units Method Reference Comment
Deltavap46.0 ± 0.8kJ/molAVGN/AAverage of 8 values; Individual data points

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
42.7363.A,MMStephenson and Malanowski, 1987Based on data from 348. - 433. K. See also Forziati, Norris, et al., 1949 and Willingham, Taylor, et al., 1945.; AC
43.8355.N/APaul, Krug, et al., 1986Based on data from 340. - 391. 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
348.97 - 433.394.075841490.963-66.0Forziati, Norris, et al., 1949, 2

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
9.27173.6Acree, 1991AC

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
8.498171.67crystaline, IIliquidMesserly, Todd, et al., 1965, 2DH
9.268173.60crystaline, IliquidMesserly, Todd, et al., 1965, 2Metastable crystals.; DH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
49.50171.67crystaline, IIliquidMesserly, Todd, et al., 1965, 2DH
53.39173.60crystaline, IliquidMesserly, Todd, et al., 1965, 2Metastable; DH

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.

Messerly, Todd, et al., 1965
Messerly, J.F.; Todd, S.S.; Finke, H.L., Low-Temperature Thermodynamic Prop. of n-Propyl and n-Butylbenzenes, J. Phys. Chem., 1965, 69, 4304-11. [all data]

Tsonopoulos and Ambrose, 1995
Tsonopoulos, C.; Ambrose, D., Vapor-Liquid Critical Properties of Elements and Compounds. 3. Aromatic Hydrocarbons, J. Chem. Eng. Data, 1995, 40, 547-558. [all data]

Ambrose, Broderick, et al., 1967
Ambrose, D.; Broderick, B.E.; Townsend, R., The Vapour Pressures above the Normal Boiling Point and the Critical Pressures of Some Aromatic Hydrocarbons, J. Chem. Soc. , 1967, 1967, 1967, 633-41. [all data]

Ambrose, Cox, et al., 1960
Ambrose, D.; Cox, J.D.; Townsend, R., The critical temperatures of forty organic compounds, Trans. Faraday Soc., 1960, 56, 1452. [all data]

Simon, 1957
Simon, M., Methods and Apparatus Used at the Bureau of Physicochemical Standards XV. Critical Constants and Straight-Line Diameters of Ten Hydrocarbons, Bull. Soc. Chim. Belg., 1957, 66, 375-81. [all data]

Altschul, 1893
Altschul, M., The critical values of some organic compounds, Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1893, 11, 577. [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]

Forziati, Norris, et al., 1949
Forziati, Alphonse F.; Norris, William R.; Rossini, Frederick D., Vapor pressures and boiling points of sixty API-NBS hydrocarbons, J. RES. NATL. BUR. STAN., 1949, 43, 6, 555-17, https://doi.org/10.6028/jres.043.050 . [all data]

Willingham, Taylor, et al., 1945
Willingham, C.B.; Taylor, W.J.; Pignocco, J.M.; Rossini, F.D., Vapor pressures and boiling points of some paraffin, alkylcyclopentane, alkylcyclohexane, and alkylbenzene hydrocarbons, J. RES. NATL. BUR. STAN., 1945, 35, 3, 219-17, https://doi.org/10.6028/jres.035.009 . [all data]

Paul, Krug, et al., 1986
Paul, Hanns-Ingolf; Krug, Joseph; Knapp, Helmut, Measurements of VLE, hE and vE for binary mixtures of n-alkanes with n-alkylbenzenes, Thermochimica Acta, 1986, 108, 9-27, https://doi.org/10.1016/0040-6031(86)85073-0 . [all data]

Forziati, Norris, et al., 1949, 2
Forziati, A.F.; Norris, W.R.; Rossini, F.D., Vapor Pressures and Boiling Points of Sixty API-NBS Hydrocarbons, J. Res. Natl. Bur. Stand. (U.S.), 1949, 43, 6, 555-563, https://doi.org/10.6028/jres.043.050 . [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]

Messerly, Todd, et al., 1965, 2
Messerly, J.F.; Todd, S.S.; Finke, H.L., Low-temperature thermodynamic properties of n-propyl- and n-butylbenzene, J. Phys. Chem., 1965, 69, 4304-4311. [all data]


Notes

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