Electrochemical Behavior of Hastelloy C-276 in Sulfuric Acid Solutions in a Wide Range of Concentrations and Temperatures

CORROSION ◽  
1987 ◽  
Vol 43 (11) ◽  
pp. 656-660 ◽  
Author(s):  
M. A. El Zeky ◽  
Z. Szklarska-Smialowska ◽  
E. Lunarska
Keyword(s):  
Sulfuric Acid ◽  
Electrochemical Behavior ◽  
Acid Solutions ◽  
Wide Range ◽  
Sulfuric Acid Solutions

scholarly journals Voltammetric investigations of anodic dissolution of natural mineral chalcopyrite

2008 ◽  
Vol 44 (1) ◽  
pp. 115-124 ◽  
Author(s):  
M. Vukovic ◽  
Z.D. Stankovic ◽  
M. Rajcic-Vujasinovic ◽  
V. Cvetkovski
Keyword(s):  
Cyclic Voltammetry ◽  
Sulfuric Acid ◽  
Kinetic Analysis ◽  
Electrochemical Behavior ◽  
Electrochemical Reactions ◽  
Acid Solutions ◽  
Ore Deposit ◽  
Natural Mineral ◽  
Sulfuric Acid Solutions ◽  
Natural Chalcopyrite

Anodic oxidation of the natural mineral chalcopyrite from the Bor ore deposit has been studied by cyclic voltammetry in pure sulfuric acid solutions. At the obtained voltammograms, the appearance of peaks at certain potential regions was identified and found to be much less pronounced than those previously reported in the literature. The voltammetric kinetic analysis confirmed that two-electron exchange electrochemical reactions occur. The explanation for this somewhat different electrochemical behavior of natural chalcopyrite compared to the concentrates widely used in studies of this mineral will also be given.

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