Journal of Phase Equilibria

, 23:211 | Cite as

Optimization of thermodynamic properties of the K2O-SiO2 system at high temperatures

  • Stefan Forsberg
Basic And Applied Research


An optimized set of thermodynamic functions for the K2O-SiO2 system at 105 Pa pressure was obtained by considering available phase diagram and thermodynamic data. KSi0.25O and SiO2 were selected as components for the liquid phase. With respect to these components, the highly non-ideal interactions of potassium oxide and silica could be described by using only three temperature-independent Redlich-Kister coefficients for the excess G of the liquid phase. The result is in good agreement with experimental data.


Disilicate Liquidus Curve Potassium Silicate Alkaline Earth Metal Oxide Potassium Oxide 
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Copyright information

© ASM International 2002

Authors and Affiliations

  • Stefan Forsberg
    • 1
  1. 1.Department of Chemistry, Inorganic ChemistryUmeå UniversityUmeåSweden

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