Processes of Complex Formation in an Fe(II)–Fe(III)–H2Sal–C2H5OH–H2O System
Davlatshoeva J.A., Eshova G.B., Rakhimova M., Miraminzoda F.
Abstract
Processes of the formation of coordination compounds in the Fe(II)–Fe(III)–H2Sal–C2H5OH–H2O system are studied using the Clark–Nikolsky oxidation potential at a temperature of 298.16 K and an ionic strength of the solution of 1.0 mol/L against a sulfate background. The formation of complexes of the following compositions is established: [FeHSal(H2O)5]2+, [Fe(HSal)2(H2O)4]+, [Fe(HSal)2OH(H2O)3]−, [Fe(HSal)2(OH)2(H2O)3]3−, [FeIIIFeII(HSal)2(OH)2(H2O)8]+, [FeHSal(H2O)5]+, [Fe(HSal)(OH)(H2O)4]0, [FeIIFeIII(HSal)2(OH)2(H2O)8]+. The constants of formation of all complexes are calculated via iteration of the oxidizing function, and the areas of their dominance and maximum degrees of accumulation are determined.