Extraction separation of cadmium and zinc with tetra-n-butylammonium iodide |
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| Authors: | Z. Marczenko M. Mojski J. Krejzler |
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| Affiliation: | 1. Department of Analytical Chemistry, Technical University, Warsaw, (Poland)
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| Abstract: | Tetra-n-butylammonium iodide (TBAI) forms associations in chloroform and aqueous solutions. A TBAI solution in chloroform extracts hydroiodic acid by addition. From 0.5M hydroiodic acid medium cadmium is quantitatively extracted into a TBAI solution in chloroform. Under these conditions zinc is not extracted. This makes possible the extractive separation of cadmium from zinc in micro-or macroamounts. |
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