Notes. Reductive destruction of hydrazines as an approach to hazard control.
Hydrazine and 14 of its monoand disubstituted alkyl, aryl, and acyl derivatives were quantitatively destroyed by using either of two nickel-based catalytic reductive procedures. Small volumes of solutions containing hydrazines were made alkaline and treated with aluminumnickel powder; large volumes were treated with preformed Raney nickel with or without an exogenous hydrogen source. No interference was discovered except from acetone. The only products detected were ammonia and the amines corresponding to the hydrazine reduced. No benzidine could be detected when 1,2-diphenylhydrazine was reduced. These procedures appear to provide a reliable, efficient, one-step approach to conversion of potentially carcinogenic hydrazines to innocuous products in laboratory wastes or in the environment.