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Prediction of electrolyte solubilities from minimal thermodynamic information

Königsberger, E.ORCID: 0000-0002-4606-0741 (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.

Item Type: Journal Article
Murdoch Affiliation(s): School of Chemical and Mathematical Science
Publisher: Springer Verlag
Copyright: © Springer Verlag 2001
Notes: Invited review
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