Equilibria in aqueous solutions of some iron(II) complexes
Abstract
Stepwise stability constants of complexes formed in the Fe2+–oxalate(2–), –malonate(2–), –glycinate(1 –), –β-alaninate(1 –), –ethylenediamine, –diethylenetriamine, –triethylenetetra-amine, –iminodiacetate(2–), –nitrilotriacetate(3–), and ethylenediamine-N,N′-diacetate(2–) systems have been determined in aqueous solutions of 1 mol dm–3 KCl at 298 K using pH-metry. The equilibrium constants of the Fe2+ and Co2+ complexes are compared and similarities and differences in the co-ordination properties discussed.