• Ewa Rudnik AGH University of Science and Technology, Faculty of Non-Ferrous Metals, Department of Physical Chemistry and Metallurgy of Non-Ferrous Metals, Krakow, Poland
  • Grzegorz Chowaniec AGH University of Science and Technology, Faculty of Non-Ferrous Metals, Department of Physical Chemistry and Metallurgy of Non-Ferrous Metals, Krakow, Poland




electrolysis, gluconate, gelatin, β-naphtol, morphology


Basic electrochemical experiments on the kinetics of tin deposition from an acid sulfate solution containing organic additives were performed. The measurements showed that tin deposits with activation polarization in a narrow potential range. Organic additives like gelatin and β-naphtol inhibit the charge transfer stage of the cathodic reaction due to the formation of adsorption layers. In turn, the gluconate ions increase the rate of tin deposition due to the bonding of hydrogen ions and inhibiting hydrogen coevolution. This results in serious changes in the morphology of tin deposits from isolated polyhedron crystals (no additive) via rectangular plates (β-naphtol) and thin plates (sodium gluconate) to rounded grains (gelatin).


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How to Cite

Rudnik, E., & Chowaniec, G. (2018). EFFECT OF ORGANIC ADDITIVES ON ELECTRODEPOSITION OF TIN FROM ACID SULFATE SOLUTION. Metallurgy and Foundry Engineering, 44(1), 41. https://doi.org/10.7494/mafe.2018.44.1.41