Extraction Of Cobalt (II) Ions From Aqueous Medium Into Chloroform Solution Of 4-Propionyl-2, 4-Dihydro-5-Methyl-2-Phenyl-3h-Pyrazol-3-One: Effects Of PH, Acids And Complexing Agent

ABSTRACT

The extraction of Cobalt (II) ions from various buffered aqueous solutions was studied using chloroform solutions of 4-Propionyl-2, 4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one (HPrP) Schiff base. The complexing agent and concentration effect of 4-propionyl-2, 4-dihydro5-methyl-2-phenyl-3H-pyrazol-3-one (HPrP) in these extractions were also studied and optimized. The effects of certain mineral acids were examined alongside metal ions under a suitable extraction condition.  From the mineral acids studied, cobalt didn’t form non extractable complex. Increase in pH above 10.0 resulted to a decrease in cobalt extraction. Increase in the concentration of various acids above 2.0 pushed the percentage extraction to zero (0).