Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

Phase change data

Go To: Top, References, Notes

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, Chris Muzny 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.
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis

Quantity Value Units Method Reference Comment
Tfus253.6KN/AClark, Knox, et al., 1977Crystal phase 1 phase; Uncertainty assigned by TRC = 0.2 K; TRC
Quantity Value Units Method Reference Comment
Δvap51.7 ± 0.2kJ/molN/ADruzhinina, Varushchenko, et al., 2000See also Melkhanova, Pimenova, et al., 2000.; AC
Quantity Value Units Method Reference Comment
Δsub78. ± 1.kJ/molVSteele and Watt, 1977ALS
Δsub78.0kJ/molN/ASteele and Watt, 1977DRB
Δsub77.8 ± 1.3kJ/molBGSteele and Watt, 1977Based on data from 300. to 360. K.; AC

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Reference Comment
1.73253.6Clark, Knox, et al., 1977AC

Entropy of fusion

ΔfusS (J/mol*K) Temperature (K) Reference Comment
27.61228.2Clark, Knox, et al., 1977CAL

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:


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.

Clark, Knox, et al., 1977
Clark, Timothy; Knox, Trevor Mc.O.; Mackle, Henry; McKervey, M. Anthony, Order--disorder transitions in substituted adamantanes, J. Chem. Soc., Faraday Trans. 1, 1977, 73, 0, 1224, https://doi.org/10.1039/f19777301224 . [all data]

Druzhinina, Varushchenko, et al., 2000
Druzhinina, A.I.; Varushchenko, R.M.; Sarkisova, V.S.; Pimerzin, A.A., The low-temperature heat capacity and the thermodynamic functions of 1,3,5-trimethyladamantane, Zh. Fiz. Khim., 2000, 74, 3, 404. [all data]

Melkhanova, Pimenova, et al., 2000
Melkhanova, S.V.; Pimenova, S.M.; Kolesov, V.P.; Pimerzin, A.A.; Sarkisova, V.S., The standard molar enthalpies of formation of some alkyladamantanes, The Journal of Chemical Thermodynamics, 2000, 32, 10, 1311-1317, https://doi.org/10.1006/jcht.2000.0691 . [all data]

Steele and Watt, 1977
Steele, W.V.; Watt, I., The standard enthalpies of formation of adamantanoid compounds 4. Methyladamantanes, J. Chem. Thermodyn., 1977, 9, 843-849. [all data]


Go To: Top, Phase change data, References