Лако-красочные материалы — производство

A few electrochemical reductions of formazans to hydrazidine have been reported.370,372 Ho wever, as discussed in Section 7.4.2.6, electrochemi­cal techniques have been widely used to study the redox chemistry of tetrazolium salts and formazans. Opinions about the reversibility of the electron transfer step, the number of electrons involved, and the identity of the rate-determining step differ widely.369- 371,656 The electrochemical oxi­dation of some novel formazans, e. g., 215 produces the dicationic species 216 (Eq. 28). The mechanism is not clearly understood.372,373