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.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Jaworski, Z., Czernuszewicz, M., & Gralla, Ł. (2011). A comparative study of thermodynamic electrolyte models applied to the Solvay soda system. Chemical and Process Engineering, 32, 135–154. DOI: 10.2478/v10176-011-0011-9.
Li, X. S., Zhang, C. D., Wu, H. J., Liu, J. R., & Zhang, T. (1999). Solubility in the Na2CO3 + NaHCO3 + Na2SO4 + NaCl + H2O system and its subsystems at 150°C. Journal of Chemical & Engineering Data, 44, 813–819. DOI: 10.1021/je9802569.
Linke, W., & Seidell, A. (1965). Solubilities, inorganic and metal organic compounds: a compilation of solubility data from the periodical literature (Vol. 2, pp. 915–951). Washington, DC, USA: American Chemical Society.
Niederliński, A., Bukowski, A., & Koneczny, H. (1978). Soda and accompanying products: Engineering and technology handbook. Warsaw, Poland: WNT. (in Polish)
Silcock, H. L. (1979). Solubilities of inorganic and organic compounds (Vol. 3). Oxford, UK: Pergamon Press.
Stephen, H., Stephen, T., & Silcock, H. L. (1963). Solubilities of inorganic and organic compounds (Vol. 1). New York, NY, USA: Pergamon Press.
Sytniewski, A. (1998). Regression analysis of the salts solubility of the NaCl — NaHCO3 — H2O, NH4HCO3 — NaHCO3 — H2O, and NH4HCO3 — NH4Cl — H2O systems. Polish Journal of Applied Chemistry, 42, 23–29.
Tomaszewski, J. (1961). Investigation of equilibrium of the system Na2CO3-NaHCO3-H2O. Studia Societatis Scientiarum Torunensis, Sectio B, 3(2), 1–62. (in Polish)
Wang, P., Anderko, A., & Young, R. D. (2002). A speciation-based model for mixed-solvent electrolyte systems. Fluid Phase Equilibria, 203, 141–176. DOI: 10.1016/s0378-3812(02)00178-4.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Jaworski, Z., Czernuszewicz, M. Liquid-solid equilibrium for the NaCl-NaHCO3-Na2CO3-H2O system at 45°C. Validation of mixed solvent electrolyte model. Chem. Pap. 67, 1181–1187 (2013). https://doi.org/10.2478/s11696-013-0364-2
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.2478/s11696-013-0364-2