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

• Authors: Dmitriy Golovko , Virender Sharma , Olga. Pavlova , Elena. Belyanovskaya , Igor. Golovko , Victoria. Suprunovich , Radek Zboril
• Languages of publication: EN

Abstracts

EN

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. [...]

Keywords

EN

Ferrate; Amperometric Titration; Electrochemical Analysis; Diffusion current; Chromite

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2011
• Volume: 9
• Issue: 5
• Pages: 808-812

Dates

published

1 - 10 - 2011

online

24 - 7 - 2011

Contributors

author

Dmitriy Golovko

• Faculty of Inorganic Substances Technology, Ukraine State Chemical Technological University, 49005, Dniepropetrovsk, Ukraine

author

Virender Sharma

• Chemistry Department, Florida Institute of Technology, Melbourne, Florida, 32901, USA

author

Olga. Pavlova

• Faculty of Inorganic Substances Technology, Ukraine State Chemical Technological University, 49005, Dniepropetrovsk, Ukraine

author

Elena. Belyanovskaya

• Faculty of Inorganic Substances Technology, Ukraine State Chemical Technological University, 49005, Dniepropetrovsk, Ukraine

author

Igor. Golovko

• Faculty of Inorganic Substances Technology, Ukraine State Chemical Technological University, 49005, Dniepropetrovsk, Ukraine

author

Victoria. Suprunovich

• Faculty of Inorganic Substances Technology, Ukraine State Chemical Technological University, 49005, Dniepropetrovsk, Ukraine

author

Radek Zboril

• Nanomaterial Research Centre, Palacky University, 771 46, Olomouc, Czech Republic

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Identifiers

DOI

10.2478/s11532-011-0069-8