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Extraction of Copper Cu(II) from aqueous solutions by using of 2-[p-(2'-Pyrimidyl sulphamyl) phenyl azo]-4,5-diphenyl imidazole | ||
| journal of al-qadisiyah for pure science(quarterly) | ||
| Article 1, Volume 10, Issue 4, 2010, Pages 39-50 PDF (0 K) | ||
| Author | ||
| Abdulla M. Hbiban | ||
| Abstract | ||
| The extraction of Copper has studies as complex means of (PSPAI) dissolved in chloroform .The search comprises the following aspects: the optimum pH values for extraction was (pHext. = 8 ), so the suitable concentration of Cu(II) ions in aqueous solution which is giving highest distribution ratio (D) was (40 ìg ) ,studying effect of extraction time illustrated the optimum shaking time to reach the equilibria twenty minute . It was found from experiments that the best D of Cu(II) when the concentration of ligand equal to [6 x 10-5 M ] and the probability form category enable for extraction [Cu(PSPAI)]+2SO4-2 from the slope of straight line of this catgory , that the more probable structure of ion pair (metal : ligand) complex extracted was 1 : 1.The study of organic solvent effect appear that there the D values increasing with increasing of dielectric constant of organic solvents used . The thermodynamic study demonstrates the complexation reaction is an exothermic . | ||
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