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

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
15.5299.AStephenson and Malanowski, 1987Based on data from 284. to 323. K.; AC
16.1299.N/ACabani, Conti, et al., 1975Based on data from 284. to 321. K.; AC

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Reference Comment
0.361278.3Rute, Salud, et al., 2003AC
0.38280.3Domalski and Hearing, 1996AC

Entropy of fusion

ΔfusS (cal/mol*K) Temperature (K) Reference Comment
4.058172.2Domalski and Hearing, 1996CAL
0.583227.3
0.810258.4
1.37280.3

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

ΔHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.209258.45crystaline, IIcrystaline, IAdachi, Suga, et al., 1972, 2DH
0.6991172.23crystaline, II'crystaline, IIAdachi, Suga, et al., 1972, 2between 162.50 and 176.50; DH
0.132227.26crystaline, IIIcrystaline, IIAdachi, Suga, et al., 1972, 2DH
0.01388152.30crystaline, III'crystaline, IIIAdachi, Suga, et al., 1972, 2DH
0.3834280.30crystaline, IliquidAdachi, Suga, et al., 1972, 2DH

Entropy of phase transition

ΔStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
0.810258.45crystaline, IIcrystaline, IAdachi, Suga, et al., 1972, 2DH
0.583227.26crystaline, IIIcrystaline, IIAdachi, Suga, et al., 1972, 2DH
0.091152.30crystaline, III'crystaline, IIIAdachi, Suga, et al., 1972, 2DH
1.37280.30crystaline, 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:


Gas Chromatography

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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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillaryOV-101150.1028.0Cha and Lee, 1994Column length: 20. m; Column diameter: 0.5 mm
CapillaryOV-101180.1040.2Cha and Lee, 1994Column length: 20. m; Column diameter: 0.5 mm
PackedApiezon L130.1022.Wehrli and Kováts, 1959Celite; Column length: 2.25 m

Van Den Dool and Kratz RI, polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillarySupelcowax-101566.Tanchotikul and Hsieh, 198960. m/0.25 mm/0.25 μm, 40. C @ 5. min, 2. K/min, 175. C @ 20. min
CapillarySupelcowax-101566.Tanchotikul and Hsieh, 198960. m/0.25 mm/0.25 μm, 40. C @ 5. min, 2. K/min, 175. C @ 20. min

Normal alkane RI, polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryDB-Wax1547.Peng, Yang, et al., 1991Program: not specified

References

Go To: Top, Phase change data, Gas Chromatography, Notes

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]

Cha and Lee, 1994
Cha, K.-W.; Lee, D.-J., Prediction of retention indices of various compounds in gas-liquid chromatography, J. Korean Chem. Soc., 1994, 38, 2, 108-120, retrieved from http://journal.kcsnet.or.kr/publi/dh/dh94n2/108.pdf. [all data]

Wehrli and Kováts, 1959
Wehrli, A.; Kováts, E., Gas-chromatographische Charakterisierung ogranischer Verbindungen. Teil 3: Berechnung der Retentionsindices aliphatischer, alicyclischer und aromatischer Verbindungen, Helv. Chim. Acta, 1959, 7, 7, 2709-2736, https://doi.org/10.1002/hlca.19590420745 . [all data]

Tanchotikul and Hsieh, 1989
Tanchotikul, U.; Hsieh, T.C.-Y., Volatile Flavor Components in Crayfish Waste, J. Food Sci., 1989, 54, 6, 1515-1520, https://doi.org/10.1111/j.1365-2621.1989.tb05149.x . [all data]

Peng, Yang, et al., 1991
Peng, C.T.; Yang, Z.C.; Ding, S.F., Prediction of rentention idexes. II. Structure-retention index relationship on polar columns, J. Chromatogr., 1991, 586, 1, 85-112, https://doi.org/10.1016/0021-9673(91)80028-F . [all data]


Notes

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