ABSTRACT
The electrochemical behavior of some arylidene derivatives of carbohydrazides was investigated by dc-polarography, de-polarography, cyclic voltammetry, and controlled potential coulometry techniques, at a mercury electrode in 50% ethanolic Britton-Robinson buffer solutions of pH 2-10. In acidic media [pH <4], the reduction occurs along a single irreversible 8-electron wave corresponding to the cleavage of the 2 N-N bonds and saturation of the 2 C=N centers, while at 6