Cloud Point Extraction with Liquid Ion Exchange For Separation And Determination Of Zinc (Ii)

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Jihan R. Moslim , Safa M. Hameedand Shawket K. Jawad

Abstract

For extraction Zinc (II) as ion pair association complex,used Cinchonine as organic reagent to performed this extraction method,spectrophotometric studies for ion pair association complex for Cinchonine and Zn2+ in acidic HCl medium, shows the wave length of maximum absorbance wasλmax=290nm,as well as optimum conditions for higher extraction efficiency according to liquid ion exchange coupled with cloud point extraction method where,0.3MHCl ,in presence 50 µg Zn2+ in 10 mL aqueoussolution,0.5 mLsurfactant Triton X- 100 , with heating at 850C for 15 min. The stoichiometry shows up the composition of ion pair association compiles extracted was H Cinchonine+; HZnCl2-, in addition to other studies such as effect ofelectrolyte, interferences, and else.

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