( 266 ) 



Fig. I. Iiilluence of the concentration of the acid on the ratio of transformation. 



Temp. '■23°. 



Formed benzidine in procents. 



Figuur II. Intluence of the amount of alcohol on the ratio of transformatie n. 



O.i n. hydrochloric acid, t 



= t>5^ 



Formed benzidine in procents. 



Figuur 111. Iiilliience of the temperature on the ratio of transformation. 



1. — n. Iivdrochloric acid 



-a 



Foijmed benzidine in procents. 



