Synergism in the extraction of cerium in presence of a mixture of a β-diketone and nitrogen donors like pyridine, 2,4-dimethylpyridine, quinoline and 8-nitroquinoline has been investigated. The nature of the extracted species has been investigated and the equilibrium constants for adduct formation have been calculated. Synergism increased in the order 8-nitroquinoline < pyridine ≈ quinoline > 2,4-dimethyl pyridine.
Volume 135, 2023
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