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Benzene, 1,4-bis(1,1-dimethylethyl)-

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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, Kenneth Kroenlein director
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil508.15KN/AMalishev, 1935Uncertainty assigned by TRC = 2. K; TRC
Quantity Value Units Method Reference Comment
Tfus351. ± 6.KAVGN/AAverage of 10 values; Individual data points
Quantity Value Units Method Reference Comment
Ttriple350.8KN/ASteele, Chirico, et al., 1997Uncertainty assigned by TRC = 0.3 K; TRC
Quantity Value Units Method Reference Comment
Tc708.KN/ASteele, Chirico, et al., 1997Uncertainty assigned by TRC = 2. K; derived from fit of obs. vapor pressure; TRC
Quantity Value Units Method Reference Comment
Pc23.00barN/ASteele, Chirico, et al., 1997Uncertainty assigned by TRC = 2.00 bar; derived from fit of obs. vapor pressure; TRC
Quantity Value Units Method Reference Comment
rhoc1.37mol/lN/ASteele, Chirico, et al., 1997Uncertainty assigned by TRC = 0.079 mol/l; TRC
Quantity Value Units Method Reference Comment
Deltavap63.0 ± 0.1kJ/molEB,IPChirico and Steele, 2009Based on data from 319. - 559. K.; AC
Deltavap61.4 ± 0.3kJ/molGSVerevkin, Kozlova, et al., 2008Based on data from 354. - 382. K.; AC
Deltavap63.0 ± 0.6kJ/molEBSteele, Chirico, et al., 1997, 2Based on data from 387. - 559. K.; AC
Quantity Value Units Method Reference Comment
Deltasub82.8 ± 0.4kJ/molN/AVerevkin, 1998AC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
55.8 ± 0.1360.EB,IPChirico and Steele, 2009Based on data from 319. - 559. K.; AC
54.6 ± 0.1400.EB,IPChirico and Steele, 2009Based on data from 319. - 559. K.; AC
61.4 ± 0.1440.EB,IPChirico and Steele, 2009Based on data from 319. - 559. K.; AC
46.4 ± 0.2480.EB,IPChirico and Steele, 2009Based on data from 319. - 559. K.; AC
44.6 ± 0.3520.EB,IP[Chirico and Steele, 2009Based on data from 319. - 559. K.; AC

Enthalpy of sublimation

DeltasubH (kJ/mol) Temperature (K) Method Reference Comment
82.1 ± 0.4310.TVerevkin, 1998Based on data from 288. - 333. K.; AC
82.8305.MEHopke and Sears, 1951Based on data from 285. - 325. K. See also Stephenson and Malanowski, 1987.; AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Method Reference Comment
8.2350.8AC,DSCChirico and Steele, 2009AC
22.48341.5N/ASteele, Chirico, et al., 1997, 2AC

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

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Malishev, 1935
Malishev, B.W., Direct Alkylation of Aromatic Hydrocarbons by Olefins Under Catalytic Influence of Phosphorous Pentoxide, J. Am. Chem. Soc., 1935, 57, 883. [all data]

Steele, Chirico, et al., 1997
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A., Vapor Pressure, Heat Capacity, and Density along the Saturted Line, Measurements for Cyclohexanol, 2-Cyclohexen-1-one, 1,2-Dichloropropane, 1,4-Di-tert-butylbenzene, (±)-2-Ethylhexanoic Acid, 1-(m, J. Chem. Eng. Data, 1997, 42, 1021-36. [all data]

Chirico and Steele, 2009
Chirico, Robert D.; Steele, William V., Thermodynamic properties of tert-butylbenzene and 1,4-di-tert-butylbenzene, The Journal of Chemical Thermodynamics, 2009, 41, 3, 392-401, https://doi.org/10.1016/j.jct.2008.10.008 . [all data]

Verevkin, Kozlova, et al., 2008
Verevkin, Sergey P.; Kozlova, Svetlana A.; Emel'yanenko, Vladimir N.; Goodrich, Peter; Hardacre, Christopher, Thermochemistry of Ionic Liquid-Catalyzed Reactions. Experimental and Theoretical Study of Chemical Equilibria of Isomerization and Transalkylation of tert -Butylbenzenes, J. Phys. Chem. A, 2008, 112, 44, 11273-11282, https://doi.org/10.1021/jp806410x . [all data]

Steele, Chirico, et al., 1997, 2
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A., Vapor Pressure, Heat Capacity, and Density along the Saturation Line, Measurements for Cyclohexanol, 2-Cyclohexen-1-one, 1,2-Dichloropropane, 1,4-Di- tert -butylbenzene, (±)-2-Ethylhexanoic Acid, 2-(Methylamino)ethanol, Perfluoro- n -heptane, and Sulfolane, J. Chem. Eng. Data, 1997, 42, 6, 1021-1036, https://doi.org/10.1021/je9701036 . [all data]

Verevkin, 1998
Verevkin, Sergey P., Thermochemical properties of branched alkylsubstituted benzenes, The Journal of Chemical Thermodynamics, 1998, 30, 8, 1029-1040, https://doi.org/10.1006/jcht.1998.0370 . [all data]

Hopke and Sears, 1951
Hopke, E.R.; Sears, G.W., Vapor Pressures below 1 mm Hg of Several Aromatic Compounds, J. Chem. Phys., 1951, 19, 11, 1345, https://doi.org/10.1063/1.1748057 . [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]


Notes

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