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Effect of competition from other metals on nickel complexation by α-isosaccharinic, gluconic and picolinic acids

Published online by Cambridge University Press:  05 July 2018

N. D. M. Evans ,
S. Antón Gascón ,
S. Vines  and
M. Felipe-Sotelo
N. D. M. Evans*
Affiliation:
Loughborough University, Ashby Road, Loughborough NG9 1DN, UK
S. Antón Gascón
Affiliation:
Loughborough University, Ashby Road, Loughborough NG9 1DN, UK
S. Vines
Affiliation:
Nuclear Decommissioning Authority, Radioactive Waste Management Directorate, NDA Harwell Office, Building 587, Curie Avenue, Harwell, Didcot, Oxfordshire OX11 0RH, UK
M. Felipe-Sotelo
Affiliation:
Loughborough University, Ashby Road, Loughborough NG9 1DN, UK
*
*E-mail: [email protected]
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Abstract

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The effect of competition from other metal ions on the complexation of Ni with isosaccharinic acid, gluconic acid and picolinic acid, at high pH, is described. The competing metal ions used were divalent Co, trivalent Eu and tetravalent Th. In the majority of cases, competition from these metal ions followed the predicted pattern, with most anomalies seeming to be caused by sorption of Ni to the many different solid phases formed in presence of the competing ions. The Ni solid phase was shown to change with time during the course of the study. No major unexplained competition effects were found.

Keywords

modellingengineered barriereuropiumisosaccharinic acidgluconic acidpicolinic acidnickelradionuclide transportthorium
Type
Research Article
Information
Mineralogical Magazine , Volume 76 , Issue 8 , December 2012 , pp. 3425 - 3434
Creative Commons
Creative Common License - CCCreative Common License - BY
© [2012] The Mineralogical Society of Great Britain and Ireland. This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY) licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2012

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