Abstract
A two-step Zn2+ ion reduction was estimated at the dropping mercury electrode in 2, 3, and 4 mol dm−3 NaClO4 with the addition of tetramethylthiourea using an impedance method at wide potential and frequency ranges. With increasing tetramethylthiourea and NaClO4 concentrations the \( k_{{{\text{s}}_{ 1} }}^{t} \) and \( k_{{{\text{s}}_{ 2} }}^{t} \) values increased, achieving their maximum values at the highest concentrations of tetramethylthiourea in 3 and 4 mol dm−3 NaClO4 solutions. The catalytic effect of tetramethylthiourea at its lowest employed concentration increased with increasing NaClO4 concentration.
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The author expresses his gratitude to Prof. Jadwiga Saba for valuable discussions.
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Nieszporek, J. The influence of tetramethylthiourea on a two-step Zn2+ ion electroreduction in concentrated NaClO4 solutions. Monatsh Chem 141, 521–527 (2010). https://doi.org/10.1007/s00706-010-0307-3
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DOI: https://doi.org/10.1007/s00706-010-0307-3