Abstract
A new amperometric titration method was developed for quantitative determination of ferrate(VI) (FeVIO4 2−) 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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Golovko, D.A., Sharma, V.K., Pavlova, O.V. et al. Determination of submillimolar concentration of ferrate(VI) in alkaline solutions by amperometric titration. cent.eur.j.chem. 9, 808–812 (2011). https://doi.org/10.2478/s11532-011-0069-8
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DOI: https://doi.org/10.2478/s11532-011-0069-8