Mon, 18 Dec 2017

Sequential Separation of Cobalt,Nickel and Lead by using α- –Oximino aceto acetanilide benzoylhydrazone(HINABH)

Pooja Vinod  Jagasia1

1.Department of Chemistry B.N.Bandodkar College of Science, Thane-400601. University of Mumbai, Maharashtra, India.


ABSTRACT

Simple, sensitive and accurate spectrophotometric method  has been developed for sequential separation of Co II,NiII and PbII with α-oximinoacetoacetaanilidebenzoylhydrazone(HINABH). HINABH forms Yellowish brown  complex with Co II and yellow colored complexes with NiII and PbII.CoII-HINABH complex was extracted in to n-butanol  in the pH range 6.0-7.0 at λ max 425 nm., whereas Ni II and PbII complexes were extracted into isoamylalcohol quantitatively in the pH range 8.5-9.5 at λ max 420nm and 410 nm respectively. HINABH complexes of Co II,NiII and PbII obeyed Beer’s law in the range of 0.2-5.0 ppm,1-14 ppm and 2-16 ppm respectively. The method had been successfully employed for the determination of Co II,NiII and PbII in the synthetic mixtures and alloys.

Keywords: Spectrophotometric determination, α-oximinoacetoacetaanilidebenzoylhydrazone, cobalt, nickel and lead samples.


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