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Investigation of adsorption behaviour of mercury in microamounts on manganese dioxide from aqueous solutions

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Abstract

Adsorption of mercury onto manganese dioxide was studied in relation to the concentrations of electrolyte, adsorbent and adsorbate and foreign ions. Adsorption of other metal ions under similar conditions was also measured. Adsorption decreases with increasing electrolyte concentration. Thiosulfate, thiocyanate, iodide and all cations tested suppress the adsorption; the greater the ionic potential of cation, the weaker the adsorption of mercury. Adsorption follows the Freundlich-type isotherm over a wide range of mercury concentration (10−7−10−8 g·ml−1). 98% of the adsorbed mercury can be eluted from the oxide column with 60 ml of 3M nitric acid solution.

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Authors and Affiliations

  1. Nuclear Chemistry Division, Pakistan Institute of Nuclear Science and Technology, P.O. Nilore, Rawalpindi, (Pakistan)

    S. M. Hasany & M. H. Chaudhary

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  1. S. M. Hasany
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  2. M. H. Chaudhary
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Hasany, S.M., Chaudhary, M.H. Investigation of adsorption behaviour of mercury in microamounts on manganese dioxide from aqueous solutions. Journal of Radioanalytical and Nuclear Chemistry, Articles 100, 307–315 (1986). https://doi.org/10.1007/BF02037236

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  • DOI: https://doi.org/10.1007/BF02037236

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