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Extraction of the lanthanides with acetylacetone

Authors
Journal
Journal of Inorganic and Nuclear Chemistry
0022-1902
Publisher
Elsevier
Publication Date
Volume
13
Identifiers
DOI: 10.1016/0022-1902(60)80244-8

Abstract

Abstract Acetylacetone extracts the lanthanides from aqueous solution at pH values between four and six. The solubility and extractability of the rare earth acetylacetonates vary with the ionic radii of the central metal ions. Extraction of the lanthanides with acetylacetone is enhanced by the decrease in basicity of the central metal ion. While separations based on differences in the pH 1 2 values of these chelates would be at best fractional, the variations in solubility and in the partition coefficients of these chelates make separations possible.

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