Skip to main content
SpringerLink
Log in

Nature of the silver precipitation obtained by cementation from thiosulphate solutions

  • Research Article
  • Published:
Central European Journal of Chemistry

Abstract

The morphology and composition of the deposits formed on the surface of magnesium disk during cementation from thiosulphate solutions (0.0025–0.1M) [Ag(S2O3)2]3− + 0.5M S2O3 2− have been studied. A porous deposit with low adhesion is formed on the surface of the magnesium metal substrate. Within a wide range of [Ag(S2O3)2]3− ion concentrations, sulfur as well as silver are constituents of the deposit at the initial stages of cementation and at the end of the reaction. This is attributed to the electrochemical behaviour of magnesium in thiosulphate solutions resulting in the exceeding of current limit on cathode for pure silver reduction. Hence, parallel electrochemical reactions take place that are very close in their values to the standard redox potentials of reduction of [Ag(S2O3)2]3− ions to Ag0 and S2O32− ions to S2−. Sulfur content in the cement deposits increases with the decrease in [Ag(S2O3)2]3− ion concentration and increase in cementation time. This tendency is also observed with the decreasing solution temperature.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. D.S. Flett, R. Derry, J.C. Wilson, Transactions of the Institution of Mining and Metallurgy 92, 216 (1983)

    CAS  Google Scholar 

  2. P. Fornari Abbruzzese, R. Massidda, F. Veglio, S. Ubaldini, Hydrometallurgy 39, 265 (1995)

    Article  Google Scholar 

  3. R.Y. Wan, J.A. Brierley, Mining Engineering 15, 76 (1997)

    Google Scholar 

  4. J. Ficeriová, P. Baláž, E. Boldižárová, S. Jeleň, Hydrometallurgy 67, 37 (2002)

    Article  Google Scholar 

  5. J. Ficeriová, P. Baláž, C.L. Villachica, Hydrometallurgy 77, 35 (2005)

    Article  Google Scholar 

  6. J.B. Hiskey, J. Lee, Hydrometallurgy 69, 45 (2003)

    Article  CAS  Google Scholar 

  7. P. Navarro, R. Alvarez, C. Vargas, F.J. Alguacil, Minerals Engineering 17, 825 (2004)

    Article  CAS  Google Scholar 

  8. V. Ibarra Galván, A. G. Mendoza Ruelas, A. López Valdivieso, Separation Science and Technology 44, 2695 (2009)

    Article  Google Scholar 

  9. M. Fabián, P. Baláž, J. Briančin, Hydrometallurgy 97, 15 (2009)

    Article  Google Scholar 

  10. G. Viramontes Gamboa, M. Medina Noyola, A. López Valdivieso, Hydrometallurgy 76, 193 (2005)

    Article  CAS  Google Scholar 

  11. N.T. Pham, M. Aurousseau, F. Gros, P. Ozil, J. Appl. Electrochem. 35, 249 (2005)

    Article  CAS  Google Scholar 

  12. O.I. Kuntyi, O.B. Masyk, R.V. Minakova, Materials Science 40, 428 (2004)

    CAS  Google Scholar 

  13. O.I. Kuntyi, G.I. Zozulya, O.G. Kurilets, Russ. J. Appl. Chem. 80, 189 (2007)

    Article  CAS  Google Scholar 

  14. O.I. Kuntyi, G.I. Zozulya, O.G. Kurilets, Russ. J. Non-Ferrous Metals 48, 413 (2007)

    Article  Google Scholar 

  15. O.I. Kuntyi, Z.O. Znak, N.M. Gnatyshyn, Chem. Industry of Ukraine 5, 34 (2003) (in Ukranian)

    Google Scholar 

  16. L. Akselrud, Yu. Grin, V. Pecharsky, P. Zavalij, B. Baumgartner, E. Wolfel, Materials Science Forum, Proceedings of the Second European Powder Diffraction Conference (Enschede, The Netherlands, 1993) vol. 133–136, pp. 335–340

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Institute of Chemistry, Lviv Polytechnic National University, Lviv, 79013, Ukraine

    O. Kuntyi & G. Zozulya

  2. Centre for Materials and Coastal Research, Institute of Materials Research, Geesthacht, 21502, Germany

    I. Saldan & V. Kree

  3. Karpenko Physical-Mechanical Institute of the NAS of Ukraine, Lviv, 79601, Ukraine

    S. Korniy

  4. Chemistry Faculty, Ivan Franko National University of Lviv, Lviv, 79005, Ukraine

    B. Stel’makhovych

Authors
  1. O. Kuntyi
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. G. Zozulya
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. I. Saldan
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. V. Kree
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. S. Korniy
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. B. Stel’makhovych
    View author publications

    You can also search for this author in PubMed Google Scholar

About this article

Cite this article

Kuntyi, O., Zozulya, G., Saldan, I. et al. Nature of the silver precipitation obtained by cementation from thiosulphate solutions. cent.eur.j.chem. 9, 180–184 (2011). https://doi.org/10.2478/s11532-010-0139-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.2478/s11532-010-0139-3

Keywords

Search

Navigation