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

Quantity Value Units Method Reference Comment
Δsub55.4kJ/molCGC-DSCChickos, Hesse, et al., 1998AC
Δsub57.03 ± 0.43kJ/molVVerevkin, Nolke, et al., 1997ALS
Δsub57.0kJ/molN/AVerevkin, Nolke, et al., 1997DRB
Δsub7.70 ± 0.08kJ/molVFlamm-ter Meer, Beckhaus, et al., 1986ALS
Δsub8.0kJ/molN/AFlamm-ter Meer, Beckhaus, et al., 1986DRB

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Method Reference Comment
57.0 ± 0.4288.TVerevkin, Nolke, et al., 1997Based on data from 265. - 319. K.; AC
57.7 ± 2.8290.HSAChickos, Hesse, et al., 1995Based on data from 273. - 306. K.; AC
7.7 ± 0.1311.N/AMeer, Beckhaus, et al., 1986Based on data from 295. - 330. K.; AC

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Reference Comment
3.53358.2Meer, Beckhaus, et al., 1986AC


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

Chickos, Hesse, et al., 1998
Chickos, James; Hesse, Donald; Hosseini, Sarah; Nichols, Gary; Webb, Paul, Sublimation enthalpies at 298.15K using correlation gas chromatography and differential scanning calorimetry measurements, Thermochimica Acta, 1998, 313, 2, 101-110, . [all data]

Verevkin, Nolke, et al., 1997
Verevkin, S.P.; Nolke, M.; Beckhaus, H.D.; Ruchardt, C., Enthalpies of formation of hexaethylethane, octamethylhexane, and tri-tert-butylmethane. Extremely strained hydrocarbons, J. Org. Chem., 1997, 62, 4683-4686. [all data]

Flamm-ter Meer, Beckhaus, et al., 1986
Flamm-ter Meer, M.A.; Beckhaus, H.D.; Ruchardt, C., Thermolabile kohlenwasserstoffe. XXIX. Verbrennungsenthalpie und sublimationsenthalpie von tri-tert-butylmethan, Thermochim. Acta, 1986, 107, 331-338. [all data]

Chickos, Hesse, et al., 1995
Chickos, James S.; Hesse, Donald G.; Hosseini, Sarah; Liebman, Joel F.; David Mendenhall, G.; Verevkin, Sergej P.; Rakus, Klaus; Beckhaus, Hans-Dieter; Rüchardt, Christoph, Enthalpies of vaporization of some highly branched hydrocarbons, The Journal of Chemical Thermodynamics, 1995, 27, 6, 693-705, . [all data]

Meer, Beckhaus, et al., 1986
Meer, M.A.F.-T.; Beckhaus, H.D.; Ruechardt, C., Thermally unstable hydrocarbons. XXIX. Heat of combustion and heat of sublimation of tri(tert-butyl)methane, Thermochim. Acta, 1986, 107, 331-338. [all data]


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