Abstract
The interaction of ethylene glycol with potassium dichromate is studied at 80° in pseudo first-order conditions by ESR method, monitoring the formation of Cr V and Cr III. The formation of Cr V complex with ethylene glycol was observed and its kinetics studied. The kinetic data show, that Cr V is produced as a result of the reaction Cr IV+Cr VI→2Cr V. Water has a strong influence on the reaction as in its presence the process 3Cr V→2Cr VI+Cr III takes place. If the reaction is carried out at a low pressure and water formed in the reaction course removed, the current Cr V concentration i srelatively high and the Cr V complex with ethylene glycol stabilized for several days at room temperature. The final products of ethylene glycol oxidation are water and glycol aldehyde, no cleavage reaction being found to proceed in these conditions.
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