“…In the proposed mechanism the reduction of periodate takes place in the one-electron process involving the creation of IO,'-, which subsequently reduces to 1 0 3 -(reaction (10) Equation (23) is consistent with eq. (3) with kobh = Addition of 103-ions to the reaction medium moves the equilibrium (10) to the left preventing the creation of peroxo product in reactions ( 1 I ) and (12). In this case the autocatalytic process disappears and the rate of the reaction is controlled by ferroin dissociation (reaction (7)), Electron transfer takes place likely with the inner-sphere mechanism, since Fe(phen);+ is not formed even as an intermediate product.…”