ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly

Liquid-solid equilibrium for the NaCl-NaHCO3-Na2CO3-H2O system at 45°C. Validation of mixed solvent electrolyte model

Zdzisław Jaworski and Małgorzata Czernuszewicz

Department of Chemical Engineering, West Pomeranian University of Technology, Szczecin, Al. Piastów 42, 71 - 065, Szczecin, Poland



Abstract: The main objective of this work was to verify the mixed solvent electrolyte (MSE) thermodynamic model for the prediction of the liquid-solid equilibrium in the soda system. The full quaternary system NaCl-NaHCO3-Na2CO3-H2O and its three subsystems were considered. Validation of the thermodynamic model was based on experimental data from literature. Phase diagrams for the soda system are plotted for isotherms of 45°C. Good agreement of the MSE results with those from experiments was found at 45°C. Similar phase diagrams for other temperature levels can be constructed based on the validated MSE model.

Keywords: soda system – solubility diagram – MSE model – validation

Full paper is available at

DOI: 10.2478/s11696-013-0364-2


Chemical Papers 67 (9) 1181–1187 (2013)

Wednesday, May 22, 2024

SCImago Journal Rank 2021
European Symposium on Analytical Spectrometry ESAS 2022
© 2024 Chemical Papers