Liquid-liquid extraction of cadmium(II) from aqueous thiocyanate solutions with liquid anion-exchangers |
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| Authors: | G J De Jong U A Th Brinkman W Th Kok |
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| Institution: | (1) Department of Analytical Chemistry, Free Reformed Universsity, Amsterdam, (The Netherlands) |
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| Abstract: | An investigation has been made on the system liquid anion-exchanger-Cd(II)-NCS−. The influence of the acidity and thiocyanate concentration of the aqueous phase on the extraction has been studied. Using
various methods of analysis, it has been shown that the complex anion present in the organic extracts is Cd(NCS)
4
2−
. Details are given concerning the removal of traces of Zn(II) from Cd(II)-containing solutions, and the quantitative separation
of Cd(II) from Cr(III). |
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| Keywords: | |
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