Stopped-flow method second-order conditions

The kinetics of the redox reaction between iron(m) and iodide ion have been reinvestigated over a very wide range of reactant conditions using the method of initial rates. Both stopped-flow and conventional spectrophotometry were used, the first-order dependence on the oxidant and second-order on iodide being confirmed. No evidence was found for any intermediate complex and the reaction scheme proposed may be described as... 

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