Abstract:
The kinetics of the reaction of 2,4-dinitrophenylhydrazine with bromate ion in sulphuric acid solution
have been studied by spectrophotometric techniques. In the fast initial step, 2,4-dinitrophenylhydrazine
+
(dnph) is oxidised to the diazonium ion (dnpN,). The reaction is of first-order with respect to dnph,
bromate, and H '. The stoicheiometric ratio of dnph to bromate ion is 1 : 1. The intermediate diazonium
ion gives the final products, including 1,3-dinitrobenzene, in a slow reaction.
