Abstract

Shawket Kadhim Jawad and Maha Abbas Hussien

DOI : http://dx.doi.org/10.13005/ojc/330538

By using cryptand C221 as organic reagent for separation and extraction Cd⁺² ion was performed by liquid ion exchange method, spectrophotometric study for ion pair association complex extracted to organic phase was elucidated wave length for maximum absorbance was λ_max=372nm, as well as experiments to pinpoint optimum condition shows 0.25M  KOH with existence 100µg Cd⁺² 0.25M 8-HQ at shaking time 15 min. with 1×10^-4M C221 dissolved in chloroform the research demonstrate by presenting method in aqueous solution effect to increase extraction efficiency, so that the extraction method was endothermic method, so the experiments shows there in un effect for organic solvent and the more probable structure of ion pair complex extracted was 1:1:1 potassium ion:C221:Cadmium oxin anion complex [K:C221]⁺; Cd(OX)^-₂.

Cryptand C221; Cadmium (II); Liquid ion Exchange; Separation; Preconcentration

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