Abd Ali, H., Hadi Hassan Hadi, A., Naji Kudhair, H., K. Jawad, S., Yahia Wadai, F. (2007). Extraction and spectrophotometric determination of Zn(II) by Use of Ligand 2-[4-Carboxy methyl phenyl azo]-4,5-diphenyl imidazole. , 7(1), 231-247.
Hussain Abd Ali; and Hadi Hassan Hadi; Haydar Naji Kudhair; S. K. Jawad; Fauzi Yahia Wadai. "Extraction and spectrophotometric determination of Zn(II) by Use of Ligand 2-[4-Carboxy methyl phenyl azo]-4,5-diphenyl imidazole". , 7, 1, 2007, 231-247.
Abd Ali, H., Hadi Hassan Hadi, A., Naji Kudhair, H., K. Jawad, S., Yahia Wadai, F. (2007). 'Extraction and spectrophotometric determination of Zn(II) by Use of Ligand 2-[4-Carboxy methyl phenyl azo]-4,5-diphenyl imidazole', , 7(1), pp. 231-247.
Abd Ali, H., Hadi Hassan Hadi, A., Naji Kudhair, H., K. Jawad, S., Yahia Wadai, F. Extraction and spectrophotometric determination of Zn(II) by Use of Ligand 2-[4-Carboxy methyl phenyl azo]-4,5-diphenyl imidazole. , 2007; 7(1): 231-247.

Extraction and spectrophotometric determination of Zn(II) by Use of Ligand 2-[4-Carboxy methyl phenyl azo]-4,5-diphenyl imidazole

journal of al-qadisiyah for pure science(quarterly)
Article 1, Volume 7, Issue 1, 2007, Pages 231-247    PDF (0 K)
Authors
Hussain Abd Ali; and Hadi Hassan Hadi; Haydar Naji Kudhair; S. K. Jawad; Fauzi Yahia Wadai
Abstract
Extraction experiments for Zn2+ ions from aqueous phase by using 2-[4-Carboxy methyl phenyl azo]-4,5-diphenyl imidazole (4-CMePADI) shows the optimum pH value for extraction Zn ion from aqueous phase as ion pair association complex was (pH = 9) which is giving higher distribution ratio for extraction, as well as extraction experiment for different concentrations of Zn2+ ions from aqueous phase by use of (4-CMePADI) dissolved in chloroform elucidate preferability 90 μg Zn2+ (2.75×10-4 M) to giving higher distribution ratio. From other hand extraction experiment about the effect of shaking time for two layers shows (15 min.) was the suitable time for shaking to reach the equilibrium of extraction and giving higher distribution ratio.
Stoichiometry for ion pair association complex extracted by using three methods showed the complex extracted have a structure of 1 : 2 which is know sandwich structure complex [Zn(4-CMePADI)2]2+ anion. The study about the effect of organic solvents on the extraction of Zn2+ ions showed preference of chloroform organic solvent for the extraction which is giving higher distribution ratio and this result shows the effect of organic solvent structure on the extraction of ion pair complex extracted, as well as thermodynamic study about the extraction of Zn2+
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