Abstract
Potentiometric measurements on a freshly prepared saturated silver tungstate solution at 25°C indicate the existence of at least four different ionic tungstate species in this solution leading to the formation of a four-component precipitate. Solubility measurements have been carried out on saturated aqueous silver tungstate solutions at 25°C at different ionic strengths and at various pH. An attempt is made to explain the appearance of the solubility curves. Conductivity measurements on saturated sodium tungstate solutions indicate a phase transition of solid sodium tungstate at 36.5±1.0°C. The assumption of a phase transition is supported by DTA and TGA measurements.
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Presentation to First International Symposium on Solubility Phenomena, University of Western Ontario, London, Ontario, August 21–23, 1984.
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Birger Jensen, J., Lou, J. Anomalous behavior of saturated aqueous tungstate solutions. J Solution Chem 14, 513–530 (1985). https://doi.org/10.1007/BF00646982
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DOI: https://doi.org/10.1007/BF00646982