Abstract
The effects of temperature, electrolytes, and pH, on the rate of oxidation of cotton cellulose by periodate have been studied. It has been shown that the reaction proceeds by way of an intermediate complex, which breaks down into the oxidation products more slowly than it is formed. The extent of complex formation is increased by lowering the temperature and by the addition of salts to the periodate solution. If it is assumed that the complex is electrically charged, the effect of added salts may be explained by application of the Donnan theory of membrane equilibrium. When periodate solutions of pH>7 are used, the insoluble reaction products (oxycelluloses) differ considerably from those produced by solutions of pH<7. A detailed study of the reaction at pH 10 has been made, and the implications of the results are discussed.
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