Spectrophotometric Determination of Copper(Ii) With 2,5-Dihydroxyacetophenone Benzoic Hydrazone

Y. S. Kudapalia and *T. Suresh

¹Department of Chemistry, Smt. A. S. M. College for Women Gandinagar Bellary- 583 101 (India)

²Department of Industrial Chemistry, Gulbarga University, P. G. Centre, Cantonment, Bellary- 583 101 (India)

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ABSTRACT:

2,5-Dihydroxyacetophenone benzoic hydrazone is proposed for detection and spectrophotometric determination of copper(II) in acidic medium. The yellow coloured complex conaining copper and the ligand in 1:1 molar ratio shows maximum absorption at 400 nm (e400nm = 1.1 x 104 l. mole-1 cm-1). Beer's law is obeyed for 0.30 to 6.00 μg ml-1 of copper. The method has ben applied to the determination of copper in alloy steels and plant leaves with good precision and accuracy.

KEYWORDS:

Spectrophotometry; Hydrazones and Copper (II)