Abstract
Acidic solutions of dimethylglyoxime produce a well-defined polarographic wave corresponding to an 8-clcctron reduction to 2,3-diaminobutane. The effects of various experimental variables on the characteristics of the wave are described, and an equation is advanced for its rate-determining step. The reduction of dimethylglyoxime at a large mercury electrode at controlled potential induces the reduction of hydrogen ion, and the mechanism of this process is discussed on the basis of coulometric evidence. Acidic solutions of dimethylglyoxime slowly decompose, by a reaction whose rate law is given, yielding what is believed to be 2,3-dinitrosobutane as the principal product.
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