Effects Of PH Acids, Anions And Complexing Agents On The Extraction Of Nickel (Ii) Ions Using Chloroform Solution 4-Butanoyl-2, 4-Dihydro-5-Methyl-2-Phenyl-3h-Pyrazol-3-One (Hbup) From Aqueous Medium

ABSTRACT

The extraction of Nickel (II) from various buffered aqueous solutions was studied using chloroform solutions of Butanoyl-2, 4-Dihydro-5-Methyl-2-Phenyl-3h-Pyrazol-3-One (HBUP). The effect various acids, anions and complexing agents (acetylacetone) on the extraction efficiency of Butanoyl-2, 4-Dihydro-5-Methyl-2-Phenyl-3h-Pyrazol-3-One (HBUP) were also studied investigated and optimized. From the mineral acids studied at various concentrations of 0.1 M, 0.5 m and 1.0 M, the result obtained showed that increase in acid concentration resulted to a steady decrease in the percentage extraction of the Ni²⁺ ion The results on the effects of anions at similar concentration for the mineral acids on the extraction of Nickel showed that anionic species exhibited similar trend with the mineral acids with increase in their concentrations affecting decrease in the percentage extraction of the Ni²⁺. Acetylacetone showed an excellent complexing agent when mixed with 4-butanoyl-2,-4-dihydro-5-methyl-2-phenyl-3H-Pyrazol-3-One (HBUP) and the mixture is capable of extracting Ni²⁺ even in acidic solution.