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Optimization of the Complexation and Extraction of Chromium(VI) with Cationic Yellow 42 Dye Reagent

V. Andruch, I. S. Balogh, M. Telepčáková, and N. Urbanová

Department of Chemistry, Faculty of Natural Sciences, P. J. Šafárik University, SK-041 54 Košice

 

E-mail: andruch@kosice.upjs.sk

Received: 16 November 2002

Abstract: The complex formation and extraction of chromium(VI) with Cationic Yellow 42 dye reagent has been investigated by the spectrophotometric method. The influence of the medium acidity, concentration of the ligand, and of the dye reagent on the absorbable of the coloured extract bas been studied. The optimum conditions have been found: 0.3-0.9 mol dm-3 H2SO4, 0.6 mol dm-3 NaBr, (2.2-2.6) × 10-4 mol dm-3 CY 42.

Full paper in Portable Document Format: 573a208.pdf

 

Chemical Papers 57 (3) 208–210 (2003)

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