Solvent extraction of copper ions by 3-substituted derivatives of β-diketones |
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Authors: | Elzbieta Radzyminska-Lenarcik |
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Affiliation: | Faculty of Chemical Technology and Engineering, UTP University of Sciences and Technology, Bydgoszcz, Poland |
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Abstract: | ABSTRACTTwo derivatives of acetylacetone (acac, 1), namely 3-butyl-acac (2) and 3-allyl-acac (3), were synthesized. A liquid–liquid partition and spectrophotometric methods were used to examine the process of complexes formation of all ligands with Cu(II) ions. It has been shown that 2 and 3 were forming two very stable complexes of ML and ML2 type. The absorption spectra proved that the extraction of copper was simplified because flat-square complexes were formed. The high values of partition ratios of two types of complexes confirm this fact. The rate of extraction of Cu(II) complexes decreases in the order 3 > 2 > 1. |
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Keywords: | Copper(II) ions metal separation solvent extraction stability constants β-diketones |
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