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BY-NC-ND 3.0 license Open Access Published by De Gruyter Open Access July 24, 2011

Determination of submillimolar concentration of ferrate(VI) in alkaline solutions by amperometric titration

  • Dmitriy Golovko EMAIL logo , Virender Sharma , Olga. Pavlova , Elena. Belyanovskaya , Igor. Golovko , Victoria. Suprunovich and Radek Zboril
From the journal Open Chemistry

Abstract

A new amperometric titration method was developed for quantitative determination of ferrate(VI) (FeVIO42−) in the 7.06×10−5−5.73×10−3 M concentration range. Chromium(III) hydroxide solution was used as the titrant. The diffusion current (Id) had a linear relationship with the concentration of ferrate(VI) and slopes were dependent on the concentration of NaOH. The amperometric titration could detect a lower concentration of ferrate(VI) than could potentiometric and colorimetric titrations. The method was applied successfully to determine concentrations of ferrate(VI), generated electrochemically, in strong alkaline solutions.

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Published Online: 2011-7-24
Published in Print: 2011-10-1

© 2011 Versita Warsaw

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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