Effect of additives on diffusion coefficient for cupric ions and kinematics viscosity in CuSO4-H2SO4 solution at 60°C

Autor:	Antonio Pagliero-Neira, Froilán Vergara-Gutierrez, Eugenia A. Araneda-Hernández
Rok vydání:	2014
Předmět:	Arrhenius equation Cupric Ion Diffusion Rotating disc Inorganic chemistry General Engineering Analytical chemistry Limiting current chemistry.chemical_element Electrolyte Copper symbols.namesake chemistry Electrode symbols
Zdroj:	DYNA. 81:209-215
ISSN:	2346-2183 0012-7353
DOI:	10.15446/dyna.v81n188.41815
Popis:	The effect of levelling and grain-refining agents on the diffusion coefficient of cupric ion was studied. Tests were performed using synthetic solutions with Cu 2+ concentration and acidity similar to those of a copper electro-refining industrial electrolyte by means of rotating disc electrode (RDE) technique. The diffusion coefficient was calculated according to Levich’s expression from measurements of limiting current for different rotating speed of the RDE. Arrhenius dependence of the diffusion coefficient with temperature in the absence of additives was verified. In presence of additives, the variation of the limiting current is mainly attributed to changes in diffusion coefficient of cupric ion observed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d85834bca3a72eb2d59c8eb4b807abc9 https://doi.org/10.15446/dyna.v81n188.41815 Zobrazit plný text záznamu Plný text ve formátu PDF