Glycinate Complexes and Models of Their Formation

Abstract

The complex formation in a Fe(II)–Fe(III)–Gly–Na(H)ClO₄–H₂O system is studied by the method of Clark–Nikolsky oxidation potential at 308.15 K, I = 0.50, C_Fe(II) = C_Fe(III) = 1 × 10^–3, and C_Gly = 2 × 10^–3 mol/L in a range of pH of 0.5–8.5. The experimental curves of the dependence of the EMF of the system on the concentration parameters such as pH, pC_Fe(III), pC_Fe(II), and pC_L are obtained. A method of successive approximations of theoretical and experimental oxidative functions is used for the calculation of the formation constants of the complexes with the use of the Excel program.