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The study of distribution coefficients of silver and mercury with chelating ion-exhange resin Dowex A-1

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Abstract

The distribution coefficients (DC) for HgCl 2−4 , Hg(SO4) 2−2 , Hg(NO3) 2−4 , Ag+, Ag(SCN) −2 and Ag(NH3) +2 between aqueous solutions and Dowex A-1 were measured in varying hydrogen ion concentrations. The DC of Ag+ in the NO −3 media was very low (4 to 6). The DC for the Ag(SCN) −2 complex decreased as pH increased. The Ag(NH3) +2 complex had a constant DC of about 65 from pH 8 and above. The trend observed for three mercury complexes in HCl, H2SO4 and HNO3 was similar; the DC decreased steadily from 0.1M to 6M. The HgCl 2−4 complex had the highest DC (9000) while the Hg(NO3) 2−4 complex had the lowest DC (2000).

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Authors and Affiliations

  1. Eastern Michigan University, 48197, Ypsilanti, MI, (USA)

    Y. Dardenne & K. Rengan

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  1. Y. Dardenne
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  2. K. Rengan
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Dardenne, Y., Rengan, K. The study of distribution coefficients of silver and mercury with chelating ion-exhange resin Dowex A-1. Journal of Radioanalytical and Nuclear Chemistry, Articles 116, 355–363 (1987). https://doi.org/10.1007/BF02035780

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  • DOI: https://doi.org/10.1007/BF02035780

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