Which steps do you follow after amine synthesis by nitro compounds? and why did the white monomer turn into pink? what can i do not to turn into pink?

 I am working  with aromatic nitro compound and reduce the nitro to amine by using hydrazin with Pd/C  at 70°C. in ethanol. after refluxing for 8h , i filtered  the precipitate and washed with...

03 August 2017 6,307 10 View