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Camphor

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Condensed phase thermochemistry 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 by: Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
solid,1 bar290.15J/mol*KN/ANagumo, Matsuo, et al., 1989crystaline, I phase; Annealed sample.
solid,1 bar291.76J/mol*KN/ANagumo, Matsuo, et al., 1989crystaline, I phase; Quenched sample.

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
238.7251.22Nagumo, Matsuo, et al., 1989crystaline, I phase; T = 36 to 252 K. Unsmoothed experimental datum. Annealed sample.
251.2301.55Nagumo, Matsuo, et al., 1989crystaline, I phase; T = 14 to 375 K. Unsmoothed experimental datum. Quenched sample.

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
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil477.2KN/AAldrich Chemical Company Inc., 1990BS
Quantity Value Units Method Reference Comment
Tfus445.6KN/AAndersson and Ross, 1992Crystal phase 1 phase; Uncertainty assigned by TRC = 3. K; TRC
Tfus451.3KN/AAndersson and Ross, 1992Crystal phase 1 phase; Uncertainty assigned by TRC = 1.5 K; TRC

Temperature of phase transition

Ttrs (K) Initial Phase Final Phase Reference Comment
218.2crystaline, IIcrystaline, INagumo, Matsuo, et al., 1989DH
209.1crystaline, IIcrystaline, INagumo, Matsuo, et al., 1989DH

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.840210.crystaline, IIcrystaline, ISchfer, 1953DH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
4.0210.crystaline, IIcrystaline, ISchfer, 1953DH

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.

Nagumo, Matsuo, et al., 1989
Nagumo, T.; Matsuo, T.; Suga, H., Thermodynamic study on camphor crystals, Thermochim. Acta, 1989, 139, 121-132. [all data]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Andersson and Ross, 1992
Andersson, O.; Ross, R.G., Thermal conductivity of (+)- and (±)-camphor at pressures up to 0.5 GPa and temperatures down to 40 K, Mol. Phys., 1992, 76, 433-44. [all data]

Schfer, 1953
Schfer, K., Fenomenos de orden y desorden en solidos, An. R. Soc. Esp. Fis. Quim. Ser., 1953, B 49, 161-174. [all data]


Notes

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