Prediction of electrolyte solubilities from minimal thermodynamic information
Königsberger, E. (2001) Prediction of electrolyte solubilities from minimal thermodynamic information. Monatshefte fur Chemie//Chemical Monthly, 132 (11). pp. 1363-1386.
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A method is proposed that permits the proper extrapolation of thermodynamic quantities represented by the Pitzer equations from 25°C to other temperatures. The new method, which assumes temperature independent heat capacities, was tested for the NaCl*H2O system and found very satisfactory. A new evaluation of the Na2CO3*H2O system according to the CALPHAD method is presented, and solubilities for the quaternary Na2CO3*NaCl*NaOH*H2O and its ternary subsystems are predicted. Limitations of (i) these predictions and of (ii) the Pitzer model regarding extrapolations to high molalities are discussed.
|Publication Type:||Journal Article|
|Murdoch Affiliation:||School of Chemical and Mathematical Science|
|Copyright:||© Springer Verlag 2001|
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