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Published on: November 9, 2015
Distribution of Pb(II) species in aqueous solutions
1Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 2G6, Canada. qi.liu@ualberta.ca
Abstract:
Turbidity and zeta potential measurements were made on solid precipitates formed after raising the pH of a 10(-3) mol/l lead nitrate aqueous solutions containing 10(-2) mol/l KCl with KOH. Distribution diagrams of Pb(II) species in aqueous solutions at a total Pb(II) concentration of 10(-3) mol/l and 10(-2) mol/l KCl was constructed to explain the results. Several solubility products for solid Pb(OH)(2) were found from the literature and used to construct the diagrams. It was observed that distribution diagrams constructed using a solubility product of 1.43x10(-20) explained the experimental results better than those with other reported solubility products.
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