Abstract
The extraction of five lanthanold(III) ions with 2,2’-bipyridine (bpy) from aqueous trichloroacetate (TCA) solutions to various organic solvents has been studied. The effect of pH, bpy, TCA and lanthanoid concentration on the distribution ratio of lanthanoid(III) was thoroughly investigated. The predominant species extracted into 1,2-dichloroethane at the low-concentration region of lanthanoid(III) was found to be Ln(bpy)2(TCA)3. The logarithmic extraction constants for La(III), Tb(III) and Lu(III) were found to be 0.67, 1.96 and 2.41, respectively.
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Sami, T.M., Imura, H. & Suzuki, N. Solvent Extraction of Lanthanoid(III) with 2,2′-Bipyridine and Trichloroacetate Ion. ANAL. SCI. 5, 587–590 (1989). https://doi.org/10.2116/analsci.5.587
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DOI: https://doi.org/10.2116/analsci.5.587