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As referring to the law of mass action, surface complexation is no more than an electrostatic item e-ZF§¶/RT in comparison with inter-liquid complexation, where Ks is the apparent constant, Kint is the inherent surface constantfor when the surface charge is 0, §¶ is the surface potential, Z is the ionic charge, F is Faraday constant, R is the gas constant, and T is the absolute temperature.
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