Abstract
DURING an investigation of the extractive separation of cadmium and zinc with naphthenic acid1,2 a selectivity reversal has been observed on the changing of the supporting electrolyte anion from sulphate to chloride. This communication reports the results of a preliminary study of the system and comments on the possibility of measurement of formation constants of the inorganic ion association complexes in the aqueous phase by an extractive technique.
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References
Fletcher, A. W., and Wilson, J. C., I.M.M. Bull., 70, 355 (1961).
Fletcher, A. W., “Improvements in or relating to the Extraction of Metal Values”, Brit. Pat. No. 915, 428 (1960); Brit. Pat. Applic. Nos. 21924/61 and 25443/61.
“Stability Constants, Part II”, Chem. Soc. Spec. Pub. No. 7 (1958).
Diamond, R. M., and Tuck, D. G., Prog. Inorganic Chemistry, Part 2 (Interscience, 1960).
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FLETT, D. A Selectivity Reversal in Solvent Extraction. Nature 200, 465–466 (1963). https://doi.org/10.1038/200465a0
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DOI: https://doi.org/10.1038/200465a0
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