Abstract
Abstract The kinetics of the substitution reactions of cobalt(II) ions and manganese(II)-ethylene-diaminetetraacetate complexes have been studied in acetate buffer solutions at 25°C and at ionic strength of 0.2. The reaction was treated as to proceed through both hydrated metal ions and monoacetato complexes. The rate constants for six elementary reaction paths, three of which involve hydrated cobalt(II) ions and the others, monoacetatocobalt(II) complexes, were determined. The values obtained indicate that all the reactions proceeding through monoacetatocobalt(II) complexes are about three times faster than the corresponding reactions proceeding through hydrated cobalt(II) ions.
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