Journal article
An electrochemical investigation of the dissolution of copper, nickel and copper-nickel alloys in ammonium carbonate solution
Journal of the South African Institute of Mining and Metallurgy, Vol.75, pp.291-302
1975
Abstract
The dissolution of copper and nickel in ammonium carbonate solution was studied by techniques involving electrcchemical anodic dissolution and ring-disc electrodes. The rate of oxidation of both copper and nickel by copper (11) was shown to be controlled mainly by diffusion to the surface. Variations in rate with changes in copper (11) concentration, agitation, pH, ammonia concentration, temperature, and copper (I) concentration were investigated and rationalized in terms of their effects on the electrochemical half-reactions involved. Evidence was found for the passivation of nickel and nickel-copper alloys of more than 50 per cent nickel.
Details
- Title
- An electrochemical investigation of the dissolution of copper, nickel and copper-nickel alloys in ammonium carbonate solution
- Authors/Creators
- M.J. Nicol (Author/Creator)
- Publication Details
- Journal of the South African Institute of Mining and Metallurgy, Vol.75, pp.291-302
- Publisher
- SAIMM
- Identifiers
- 991005542749507891
- Copyright
- © 1975 SAIMM
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
Metrics
145 File views/ downloads
94 Record Views