Co-Precipitation Studies on Lead Azide with Tetrazole Derivatives-a search for lead azide substitute

Co-precipitation of lead azide with various tetrazole and nitrophenol derivatives is discussed. Thermal behaviour of lead azide before and after co-precipitation is studied suing DSC. Thermal study indicated that the co-precipitation of lead azide with other flame sensitive compounds produced an intimate mixture of lead azide and lead salts of tetrazole and nitrophenyl derivatives but not a single compounds. Explosive properties evaluation indicated that the co-precipitation process not only improves the flame sensitivity of lead azide but also eliminates the hazardous process of physical mixing of lead azide with flame sensitive materials. A good correlation between thermal sensitivity and flame sensitivity is noticed. Both thermal and flame sensitivity decreases.