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Cycloheptanol

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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, Chris Muzny, director
AC - William E. Acree, Jr., James S. Chickos
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
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil458.2KN/AWeast and Grasselli, 1989BS
Quantity Value Units Method Reference Comment
Ttriple280.30KN/AAdachi, Suga, et al., 1972Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
64.7299.AStephenson and Malanowski, 1987Based on data from 284. - 323. K.; AC
67.4299.N/ACabani, Conti, et al., 1975Based on data from 284. - 321. K.; AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
1.51278.3Rute, Salud, et al., 2003AC
1.6280.3Domalski and Hearing, 1996AC

Entropy of fusion

DeltafusS (J/mol*K) Temperature (K) Reference Comment
16.98172.2Domalski and Hearing, 1996CAL
2.44227.3
3.39258.4
5.72280.3

Temperature of phase transition

Ttrs (K) Initial Phase Final Phase Reference Comment
128.2"crystalineIII""Adachi, Suga, et al., 1972, 2DH

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.875258.45crystaline, IIcrystaline, IAdachi, Suga, et al., 1972, 2DH
2.925172.23crystaline, II'crystaline, IIAdachi, Suga, et al., 1972, 2between 162.50 and 176.50; DH
0.554227.26crystaline, IIIcrystaline, IIAdachi, Suga, et al., 1972, 2DH
0.05807152.30crystaline, III'crystaline, IIIAdachi, Suga, et al., 1972, 2DH
1.604280.30crystaline, IliquidAdachi, Suga, et al., 1972, 2DH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
3.39258.45crystaline, IIcrystaline, IAdachi, Suga, et al., 1972, 2DH
2.44227.26crystaline, IIIcrystaline, IIAdachi, Suga, et al., 1972, 2DH
0.38152.30crystaline, III'crystaline, IIIAdachi, Suga, et al., 1972, 2DH
5.72280.30crystaline, IliquidAdachi, Suga, et al., 1972, 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

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

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Adachi, Suga, et al., 1972
Adachi, K.; Suga, H.; Seki, S., Calorimetric Study of the Glassy State. VII. Phase Changes Between the Crystalline Phases of Cycloheptanol with Various Degrees of Stability, Bull. Chem. Soc. Jpn., 1972, 45, 1960-72. [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]

Cabani, Conti, et al., 1975
Cabani, Sergio; Conti, G.; Mollica, V.; Lepori, L., Thermodynamic study of dilute aqueous solutions of organic compounds. Part 4.---Cyclic and straight chain secondary alcohols, J. Chem. Soc., Faraday Trans. 1, 1975, 71, 0, 1943, https://doi.org/10.1039/f19757101943 . [all data]

Rute, Salud, et al., 2003
Rute, M.A.; Salud, J.; Negrier, P.; López, D.O.; Tamarit, J.Ll.; Puertas, R.; Barrio, M.; Mondieig, D., Two-Component System Cycloheptanol (C7) + Cyclooctanol (C8): An Extraordinary System, J. Phys. Chem. B, 2003, 107, 24, 5914-5921, https://doi.org/10.1021/jp022193d . [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Adachi, Suga, et al., 1972, 2
Adachi, K.; Suga, H.; Seki, S., Calorimetric study of the glassy state. VII. Phase changes between the crystalline phases of cycloheptanol with various degrees of stability, Bull. Chem. Soc. Japan, 1972, 45, 1960-1972. [all data]


Notes

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