.

ISSN 2063-5346
For urgent queries please contact : +918130348310

EFFECT OF SO4 2- CONCENTRATION ON Ni(II) EXTRACTIONS FROM AQUEOUS SOLUTION USING 1-PHENYL-3-METHYL-4- TRICHLOROACETYL PYRAZOL-5-ONE IN CHLOROFORM

Main Article Content

A. Sangoremi J. Godwin, and B. A. Uzoukwu
» doi: 10.17628/ECB.2013.2.68

Abstract

The extraction of Ni2+ from aqueous solutions of various concentrations of SO4 2- ions in buffered media using 1-phenyl-l,3-methyl4- trichloroacetyl-pyrazolone-5 (HTCP) has been investigated. The synergistic effect of butanol on the extraction of the metal was also examined. Ni2+ was quantitatively extracted from solutions by HTCP only at high pH values (5 - 8) over the pH range 0 – 8 studied. However, addition of butanol resulted in a synergistic extraction of Ni2+ up to 97.78% over the range of pH 5.00 – 8.00 from aqueous buffer media containing 0.1M SO4 2- ion concentration. Increased SO4 2- ion concentration resulted in a slight decrease in the extraction of Ni2+ ion due to masking of the metal by the SO4 2- ion. In addition, overall extraction was shifted to higher pH values for extraction into chloroform solution of the ligand for Ni2+ using butanol. The log Kex and pH1/2 of the various extraction systems were determined

Article Details