Octaethylcyclotetrasiloxane

• Formula: C₁₆H₄₀O₄Si₄
• Molecular weight: 408.8284
• IUPAC Standard InChI: InChI=1S/C16H40O4Si4/c1-9-21(10-2)17-22(11-3,12-4)19-24(15-7,16-8)20-23(13-5,14-6)18-21/h9-16H2,1-8H3 Copy

  
• IUPAC Standard InChIKey: XOCOMEGNVMCRMP-UHFFFAOYSA-N Copy
• CAS Registry Number: 1451-99-6
• Chemical structure:
  This structure is also available as a 2d Mol file
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• Information on this page:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
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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, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of vaporization

Enthalpy of fusion

Temperature of phase transition

Enthalpy of phase transition

Entropy of phase transition

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.

Dzhafarov and Kuliev, 1987
Dzhafarov, O.I.; Kuliev, A.M., Heat capacity, phase transitions, and thermodynamic parameters of octaethylcyclotetrasiloxane, Zh. Fiz. Khim., 1987, 61, 602-5. [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]

Domalski and Hearing, 1990
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase Volume II, J. Phys. Chem. Ref. Data, 1990, 19, 4, 881, https://doi.org/10.1063/1.555876 . [all data]

Dzhafarov and Kuliev, 1987, 2
Dzhafarov, O.I.; Kuliev, A.M., Heat capacity, phase transitions, and thermodynamic parameters of octaethylcyclotetrasiloxane, Zhur Fiz. Khim., 1987, 61(3), 602-605. [all data]

Notes

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• Symbols used in this document:
  

  Ttriple	Triple point temperature
  Ttrs	Temperature of phase transition
  ΔHtrs	Enthalpy of phase transition
  ΔStrs	Entropy of phase transition
  ΔfusH	Enthalpy of fusion
  ΔvapH	Enthalpy of vaporization

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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