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Comparison of dynamic behaviour of the anodic dissolution of copper in aqueous chloride and bromide solutions

✍ Scribed by Z.H. Gu; S.J. Xia; T.Z. Fahidy

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 627 KB
Volume: 41
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(96)00010-2

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✦ Synopsis

Differences in the dynamic behaviour of the anodic dissolution of copper in aqueous NaCl and NaBr solutions containing SCN-ions were studied. In a neutral solution, addition of small amounts of NaBr to relatively concentrated NaCl solutions modifies oscillation amplitude, frequency and mean current density. While the mean value of the anodic current density is essentially the same in 0.5moldm-3 NaCl and 0.5moldm-J NaBr electrolytes containing 0.5moldm-' sulfuric acid, fluctuation patterns are different. The experimental results are interpreted oia Fractional Brownian Motion theory and analyzed by the principles of chemical equilibria.

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