Solvent extraction of copper (II) from aqueous solutions by new organic reagent 2-[(3-Hydroxy phenyl)azo]-4,5-diphenyl imidazole
الباحث الأول:
Shawket K. Jawad
الباحثين الآخرين:
Safa M. Hameed, Sahar A. Hussain, Hind S. Zeki, Zainab A. Jabar
المجلة:
Journal of Al-Qadisiya, Pure Science
تاريخ النشر:
None
مختصر البحث:
This study include synthesis of new organic reagent 2-[(3-Hydroxy phenyl)azo]-4,5-diphenyl
imidazole (3-HPADPI) and used it as complexing agent for extraction of Cu2+ ion from aqueous
solutions. The results show the optimum pHex=8, optimum concent…
This study include synthesis of new organic reagent 2-[(3-Hydroxy phenyl)azo]-4,5-diphenyl
imidazole (3-HPADPI) and used it as complexing agent for extraction of Cu2+ ion from aqueous
solutions. The results show the optimum pHex=8, optimum concentration of Cu2+ ion was 40μg in
5mL aqueous phase and the optimum shaking time was 10min. Stoichiometry study illustrated the
complex structure was 1:1 Cu2+:(3-HPADPI). Effect of cations interferences was studied. Synergism
effect show MIBK gave increasing of distribution ratio (D). The study of organic solvents effect
appear there is not any linear relation between dielectric constant (ε) of organic solvents used and
distribution ratio (D). Thermodynamically appear that the reaction was Endothermic reaction with
ΔHex=0.000062 KJ.mole-1, ΔGex=-51.46 KJ.mole-1, ΔSex= 159.31 J.mol-1.K-1.