The sorption of divalent metal ions on AlPO4 |
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Authors: | Naeem A Mustafa S Rehana N Dilara B Murtaza S |
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Institution: | National Centre for Excellence in Physical Chemistry, University of Peshawar, Peshawar, Pakistan. |
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Abstract: | The sorption of Cu(2+), Pb(2+), Ni(2+), and Cd(2+) ions on the aluminum(III) phosphate was observed to increase with increases in the concentration, temperature, and pH of the system. The apparent dissociation (pK(a)), binding (pK(b)) and exchange (pK(ex)) constants of aluminum(III) phosphate were evaluated and found to be dependent upon the temperature and nature of the metal cations. The values of the dissociation constants (pK(a)) followed the order Pb(2+)
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