Abstract
Abstract The distribution of scandium(III) between organic tributyl phosphate solutions and aqueous perchlorate, nitrate, chloride solutions or mixed solutions of perchlorate-nitrate, perchlorate-chloride has been determined. The distribution of scandium between 50% tributyl phosphate - chloroform and 4 m H(Cl, ClO4) or 4 m H(NO3, ClO4) in some chloride or nitrate concentration region was higher than any of that distribution between the organic phase and 4 m perchloric acid, 4 m hydrochloric acid or 4 m nitric acid. It seems that the enhancement of the distribution ratios can be attributed to the extraction of mixed ligand complexes, but no simple relationship has been established between the distribution ratios and the proportion of the complex species in the aqueous phase as calculated from the previous data.
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