The equilibrium constants of Poly(acrylic acid)–Pb(II) complex formation reactions were evaluated from stoichiometric equations by means of pH titration with a Pb(II) ion selective electrode. The thermodynamic parameters were obtained from the temperature dependence of the equilibrium constants. The Poly(acrylic acid)–Pb(II) complexes seem to be stable due to an exothermic process.
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Hayashi et al. (1991) studied this question.
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