Journal of Solution Chemistry

, Volume 6, Issue 3, pp 191–201 | Cite as

Thermodynamics of mixed electrolyte solutions. IX. Calculation of the osmotic and activity coefficients in a pseudoternary system (NaCl−nKCl)−MgCl2-H2O at 298.15°K

  • D. Saad
  • J. Padova


The equation of Reilly, Wood, and Robinson was used to predict the osmotic coefficient of a pseudoternary system (NaCl−nKCl)−MgCl2−H2O over a molal ionic strength range of 1.0 to 5.0 moles-kg−1. The results are in close agreement with experimental data at most ionic strengths. The standard deviation in the osmotic coefficients over the entire concentration range lies within 0.0035. The predicted values of the mean activity coefficients are in good agreement with those obtained by the treatments of both Scatchard and Friedman. Mean activity coefficients for the other components were also predicted.

Key words

Activity coefficients osmotic coefficients interaction parameters excess Gibbs free energy of mixing NaCl KCl MgCl2 


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Copyright information

© Plenum Publishing Corporation 1977

Authors and Affiliations

  • D. Saad
    • 1
  • J. Padova
    • 1
  1. 1.Soreq Neuclear Research CentreYavneIsrael

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