Wiley InterScience Backfile Collection 1832-2000
Chemistry and Pharmacology
The reaction between citrate and aqueous iodine is accelerated by the presence of tripositive managanese. The reaction is first order with respect to iodine and increase in concentration of Citrate suppresses the rate of reaction. Increase in the concentration of Mn(III) enhances the reaction rate. pH has a marked influence on the rate of reaction, the reaction being fastest at pH 4.25. The temperature coefficient is of the order of 3. The manganous ions lower the rate of reaction at pH higher than 3.30 while no such effect is noted below this pH. A suitable mechanism has been suggested.
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