Reaction of the indirect electrochemical decolorization of cationic textile dye CI Basic Yellow 28 with electrochemically generated "active chlorine" has been studied, using UV-Vis spectrophotometry, ion chromatography, organic carbon analysis, and cyclic voltammetry. Decolorization has been investigated on Ti/PtOx anode for different currents in the range of 50-200 mA, sodium chloride concentration in the range from 5 to 25 g dm(-3), and dye concentration from 10 to 70 mg dm(-3). The optimum electrolysis conditions and possible active species have been suggested. (C) 2012 Elsevier B.V. All rights reserved.