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Some highs and lows (and in-betweens) of solubility measurements of solid electrolytes
Journal article   Peer reviewed

Some highs and lows (and in-betweens) of solubility measurements of solid electrolytes

G. Hefter
Pure and Applied Chemistry, Vol.85(11), pp.2077-2087
2013
DOI: https://doi.org/10.1351/PAC-CON-12-11-06
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Abstract

Recent solubility measurements of a variety of solid electrolytes in water and aqueous solutions in the author's laboratories are reviewed. The experimental challenge of performing such measurements with high accuracy is demonstrated using the solubility of solid sodium chloride in water at near-ambient temperatures as a paradigm. The special difficulties of measuring low solubilities are demonstrated using Pb(II) sulfate in various aqueous solutions and Pb(II) oxide in sodium hydroxide solutions, and the usefulness of such measurements for obtaining reliable information on homogeneous reactions in solution is briefly discussed. It is also shown, using the alkali metal triflate salts as examples, that determination of the solubilities of even highly soluble salts can be problematic. Lastly, data for the solubilities of a series of sodium carboxylate salts of industrial relevance are discussed and are used to illustrate why the theoretical prediction of solid electrolyte solubilities remains such a challenge.

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Citation topics
2 Chemistry
2.89 Ionic, Molecular & Complex Liquids
2.89.462 Excess Molar Volumes
Web Of Science research areas
Chemistry, Multidisciplinary
ESI research areas
Chemistry
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