Solvent Extraction of Non Ferrous Metal using Calix(6)Arene

Shirin Imam¹

1. Dept. of Chemical Sciences, Christian Eminent College, Indore, India.

Correspondence should be addressed to: drshirin14@gmail.com.

Section:Research Paper, Product Type: Isroset-Journal
Vol.4 , Issue.3 , pp.1-3, Jun-2017

Online published on Jun 30, 2017

Copyright © Shirin Imam . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Calix(6) arenes are macrocyclic polyethers and supermolecular compounds having three dimensional structure of 4-8 bridged phenolic units with varying annular space in which metals can be trapped due to ionic interaction. The beauty of calix(6) arenes is that it is cone shaped with varying annular space ranging from 1.0-2.4. There is good possibility to change the annular space by varying *n* i.e. number of phenyl rings attached to the structure by having conformation as 1,3 or 1,2 alternate favoring the stereochemistry for the formation of complexes with metal with varying coordination number. Cobalt(II) was extracted at varying pH. At the pH range of 7-8 maximum extraction of cobalt is found. A stock solution of cobalt was prepared by dissolving cobalt chloride in distill water. A UV-visible spectrophotometer and digital pH meter was used in the experiment. It was seen that among various diluents toluene shows better separation. Cobalt(II) complex, was stripped by using 0.05 M nitric acid. The above method is simple, selective, fast and useful.

Key-Words / Index Term :
Cobalt, spectrophotometer, calix(6)arene, pH, supermolecule

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