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Cyclopentasiloxane, decamethyl-

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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, M. Frenkel director
AC - W.E. Acree, Jr., J.S. Chickos

Quantity Value Units Method Reference Comment
Tfus226.KN/AAlvik and Dale, 1971Crystal phase 1 phase; Uncertainty assigned by TRC = 1. K; TRC
Quantity Value Units Method Reference Comment
Tc617.4KN/AMcLure and Neville, 1982Uncertainty assigned by TRC = 0.3 K; Visual, TE, PG; TRC
Quantity Value Units Method Reference Comment
Pc10.35barN/AMcLure and Neville, 1982Uncertainty assigned by TRC = 0.20 bar; Visual, TE, PG; TRC
Quantity Value Units Method Reference Comment
Vc1.287l/molN/AMcLure and Neville, 1982Uncertainty assigned by TRC = 0.0013 l/mol; Visual, TE, PG; TRC
Quantity Value Units Method Reference Comment
rhoc0.777mol/lN/AMcLure and Neville, 1982Uncertainty assigned by TRC = 0.00774 mol/l; Visual, TE, PG; TRC
Quantity Value Units Method Reference Comment
Deltavap59.0 ± 1.0kJ/molCVoronkov, Klyuchnikov, et al., 1991AC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
49.0379.AStephenson and Malanowski, 1987Based on data from 364. - 472. K. See also Ditsent, Skorokhodov, et al., 1971.; AC
52.1398.EBFlaningam, 1986Based on data from 383. - 496. K.; AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
20.37226.2Alvik, Dale, et al., 1971AC

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.

Alvik and Dale, 1971
Alvik, T.; Dale, J., On the Lack of Conformational Preferences for Cyclic Dimethylsiloxane Oligomers., Acta Chem. Scand., 1971, 25, 2131, https://doi.org/10.3891/acta.chem.scand.25-2131 . [all data]

McLure and Neville, 1982
McLure, I.A.; Neville, J.F., The critical temperatures and pressures of hexamethyldisilmethylene, octamethylcyclotetrasiloxane, and decamethylcyclpentasiloxane, J. Chem. Thermodyn., 1982, 14, 385-8. [all data]

Voronkov, Klyuchnikov, et al., 1991
Voronkov, M.G.; Klyuchnikov, V.A.; Mironenko, E.V.; Shvets, G.N.; Danilova, T.F.; Khudobin, Yu.I., Thermochemistry of organosilicon compounds, Journal of Organometallic Chemistry, 1991, 406, 1-2, 91-97, https://doi.org/10.1016/0022-328X(91)83174-3 . [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]

Ditsent, Skorokhodov, et al., 1971
Ditsent, V.E.; Skorokhodov, I.I.; Terent'eva, N.A.; Zolotareva, M.N., Russ. J. Phys. Chem., 1971, 45, 6, 901. [all data]

Flaningam, 1986
Flaningam, Ora L., Vapor pressures of poly(dimethylsiloxane) oligomers, J. Chem. Eng. Data, 1986, 31, 3, 266-272, https://doi.org/10.1021/je00045a002 . [all data]

Alvik, Dale, et al., 1971
Alvik, Thor; Dale, Johannes; Fernholt, L.; Hedberg, Kenneth; Schaumburg, Kjeld; Ehrenberg, L., On the Lack of Conformational Preferences for Cyclic Dimethylsiloxane Oligomers., Acta Chem. Scand., 1971, 25, 2131-2141, https://doi.org/10.3891/acta.chem.scand.25-2131 . [all data]


Notes

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