Extraction and complexing of copper(II) with benzoic acid N,N-dihexylhydrazide |
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| Authors: | A V Radushev V Yu Gusev T D Batueva G S Bogomazova L S Shabalina V N Tyryshkina V I Karmanov |
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| Institution: | (1) Institute of Technical Chemistry, Ural Division, Russian Academy of Sciences, ul. Lenina 13, Perm, 614600, Russia |
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| Abstract: | The solubility and acid-base properties of benzoic acid N,N-dihexylhydrazide (BDHH) were studied. The extraction of copper(II), cobalt(II), nickel(II), zinc(II), iron(III), platinum(II), platinum(IV), chromium(III), chromium(VI), palladium(II), and molybdenum(VI) with this reagent was studied. It was shown that BDHH most efficiently extracts copper(II) from ammonia solutions and chromium(VI) from sulfuric acid solutions. In the extraction of copper(II), complexes with the Cu(II)]: BDHH] = 1: 1 and 1: 2 stoichiometries were found to form. The structure of the 1: 2 complex was suggested proceeding from its IR spectra. A copper(II) extraction isotherm was plotted. |
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