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Journal of Applied Electrochemistry

, Volume 12, Issue 4, pp 393–398 | Cite as

Concentration effects of hydrochloric acid on the anodic behaviour of lead sulphide

  • B. Dandapani
  • E. Ghali
Papers

Abstract

The anodic dissolution of lead sulphide is studied at various chloride concentrations and at different pH values. At 25° C it is found that in hydrochloric acid the dissolution rate reaches a maximum around 3.0 mol dm−3. It has also been observed that at concentrations between 0.7 and 1.2 mol dm−3, a crystalline sulphur deposit formed during the dissolution process leads to an independent peak on theI-E curve whereas at higher concentrations it merges with the PbCl2 peak formation. pH has no significant effect on the dissolution rate. The results of a systematic study on the kinetics of the dissolution process as a function of concentration, temperature and pH are discussed.

Keywords

Sulphur Chloride Physical Chemistry Sulphide Hydrochloric Acid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. [1]
    N. A. Lange, ‘Handbook of Chemistry’, Handbook Publishers, Sandusky (1956).Google Scholar
  2. [2]
    E. Ghali and B. Dandapani,J. Appl. Electrochem. 10 (1980) 335.Google Scholar
  3. [3]
    B. Dandapani, E. Ghali and R. Tremblay,Surface Technology 13 (1981) 39.Google Scholar
  4. [4]
    R. G. Barradas, K. Belinko and J. Ambrose,Can. J. Chem. 53 (1975) 389.Google Scholar
  5. [5]
    B. Dandapani and E. Ghali, unpublished data.Google Scholar
  6. [6]
    E. Peters,Proc. Symp. Chloride Hydrometallurgy, Brussels, Benelux, Metallurgie (1977) p. 1.Google Scholar
  7. [7]
    H. C. Helgeson, ‘Complexing and Hydrothermal Ore Deposition’, MacMillan, New York (1964).Google Scholar
  8. [8]
    S. Z. Lewin, J. E. Vance and L. B. Nelson,J. Amer. Chem. Soc. 75 (1953) 2768.Google Scholar
  9. [9]
    M. Toedtemeier, B. Dandapani and E. Ghali,Ext. Abs. 233,156th Electrochem. Soc. Meeting, Los Angeles (1979).Google Scholar

Copyright information

© Chapman and Hall Ltd. 1982

Authors and Affiliations

  • B. Dandapani
    • 1
  • E. Ghali
    • 1
  1. 1.Department of MetallurgyLaval UniversityCanada

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