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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, Kenneth Kroenlein director
AC - William E. Acree, Jr., James 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:


IR Spectrum

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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: Coblentz Society, Inc.

Condensed Phase Spectrum

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IR spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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Owner COBLENTZ SOCIETY
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin DOW CORNING CORP.
Source reference COBLENTZ NO. 5518
Date 1965/02/01
Name(s) 2,2,4,4,6,6,8,8,10,10-decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane
State SOLUTION (5% IN CCl4 FOR 3800-1270, 2% IN CS2 FOR 1270-625, AND 5% IN CCl4 FOR 625-210 CM-1)
Instrument PERKIN-ELMER 521 (GRATING)
Instrument parameters FILTERS AT 3150, 2500, 2000, 1150, 700, 410. GRATING CHANGES: 2000, 630 CM-1
Path length 0.011 CM, 0.011 CM, AND 0.020 CM
Resolution 2
Sampling procedure TRANSMISSION
Data processing DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS)
Boiling point 210 C

This IR spectrum is from the Coblentz Society's evaluated infrared reference spectra collection.


Mass spectrum (electron ionization)

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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

Spectrum

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Mass spectrum
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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin NIST Mass Spectrometry Data Center, 1994
NIST MS number 133340

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


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

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

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Column type Active phase I Reference Comment
CapillaryUltra-11166.Richmond and Pombo-Villar, 199825. m/0.32 mm/0.52 «mu»m, He, 15. K/min, 320. C @ 10. min; Tstart: 35. C

Van Den Dool and Kratz RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryVF-5MS1215.1Tret'yakov, 200730. m/0.25 mm/0.25 «mu»m, He; Program: Multi-step temperature program; T(initial)=60C; T(final)=270C

Normal alkane RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
PackedSE-30110.1164.Garzo and Alexander, 1971Chromosorb G AW DMCS (80-100 mesh); Column length: 3.5 m
PackedSE-30125.1160.Garzo and Alexander, 1971Chromosorb G AW DMCS (80-100 mesh); Column length: 3.5 m

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillarySP-21001165.Fischer and Kusch, 1993He, 40. C @ 3. min, 5. K/min; Column length: 30. m; Column diameter: 0.25 mm; Tend: 280. C
CapillaryMethyl Silicone1184.Fujimoto, Ohtani, et al., 199025. m/0.25 mm/0.1 «mu»m, He, 5. K/min; Tstart: 40. C; Tend: 350. C

Normal alkane RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryUltra-11169.Kazuyoshi, Seiichi, et al., 200030. m/0.25 mm/0.50 «mu»m; Program: 40 0C (5 min) 10 0C/min -> 200 0C 20 0C/min -> 320 0C (13 min)
CapillaryUltra-11172.Kazuyoshi, Seiichi, et al., 200030. m/0.25 mm/0.50 «mu»m; Program: 40 0C (5 min) 10 0C/min -> 200 0C 20 0C/min -> 320 0C (13 min)
CapillaryUltra-11173.Kazuyoshi, Seiichi, et al., 200030. m/0.25 mm/0.50 «mu»m; Program: 40 0C (5 min) 10 0C/min -> 200 0C 20 0C/min -> 320 0C (13 min)
CapillaryUltra-11176.Kazuyoshi, Seiichi, et al., 200030. m/0.25 mm/0.50 «mu»m; Program: 40 0C (5 min) 10 0C/min -> 200 0C 20 0C/min -> 320 0C (13 min)
CapillaryUltra-11183.Kazuyoshi, Seiichi, et al., 200030. m/0.25 mm/0.50 «mu»m; Program: 40 0C (5 min) 10 0C/min -> 200 0C 20 0C/min -> 320 0C (13 min)
CapillaryUltra-11183.Kazuyoshi, Seiichi, et al., 200030. m/0.25 mm/0.50 «mu»m; Program: 40 0C (5 min) 10 0C/min -> 200 0C 20 0C/min -> 320 0C (13 min)
CapillaryUltra-11161.Richmond and Pombo-Villar, 199825. m/0.32 mm/0.52 «mu»m, He; Program: not specified

Lee's RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryDB-5193.3Fuentes, Font, et al., 2007Column length: 60. m; Program: not specified

References

Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, NIST Free Links, Notes

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]

Richmond and Pombo-Villar, 1998
Richmond, R.; Pombo-Villar, E., Short communication. Use of persistent trace gas chromatography artifacts for the calculation of pseudo-Sadtler retention indices, J. Chromatogr. A, 1998, 811, 1-2, 241-245, https://doi.org/10.1016/S0021-9673(98)00285-4 . [all data]

Tret'yakov, 2007
Tret'yakov, K.V., Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2007. [all data]

Garzo and Alexander, 1971
Garzo, G.; Alexander, G., Gas chromatographic retention characteristics of low molecular weight linear, cyclic and polycyclic methylpolysiloxanes, Chromatographia, 1971, 4, 12, 554-560, https://doi.org/10.1007/BF02317591 . [all data]

Fischer and Kusch, 1993
Fischer, G.W.; Kusch, P., An Automated Curie-Point Pyrolysis-High Resolution Gas Chromatography System, LC-GC Int., 1993, 6, 12, 760-763. [all data]

Fujimoto, Ohtani, et al., 1990
Fujimoto, S.; Ohtani, H.; Yamagiwa, K.; Tsuge, S., Study on retention behavior of cyclic siloxanes by high resolution pyrolysis-gas chromatography with a fused silica capillary column, J. Hi. Res. Chromatogr., 1990, 13, 6, 397-404, https://doi.org/10.1002/jhrc.1240130603 . [all data]

Kazuyoshi, Seiichi, et al., 2000
Kazuyoshi, N.; Seiichi, Y.; Kazuo, K.; Katsumi, I.; Okihiko, S., Polymer analysis by improved pyrolysis gas chromatography hyphenated with four specific detectors, J. Soc. Cosmet. Chem. Jpn., 2000, 34, 2, 142-151, https://doi.org/10.5107/sccj.34.142 . [all data]

Fuentes, Font, et al., 2007
Fuentes, M.J.; Font, R.; Gomez-Rico, M.F.; Martin-Gullon, I., Pyrolysis and combustion of waste lubricant oil from diesel cars: Decomposition and pollutants, J. Anal. Appl. Pyrolysis, 2007, 79, 1-2, 215-226, https://doi.org/10.1016/j.jaap.2006.12.004 . [all data]


Notes

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