Coals catalyze the reduction of nitroaromatics by hydrazine and the decomposition of hydrazine

The reduction of nitroaromatics to anilines by hydrazine in refluxing isopropanol is catalyzed by: three anthracites, anthracite culm, Beulah Zap lignite, and Illinois No. 6 coal. The anthracites and the culm are very effective catalysts while the coals are less effective. The decomposition of hydrazine is also catalyzed by the anthracites and anthracite culm.