Thermal Risk Assessment of Sandmeyer Reaction from 5-Aminotetrazole (5-AT) to Hydronium Copper(II)-tris(5-nitrotetrazolate) trihydrate

Abstract 5-NaNT was the raw key material of copper(I) 5-nitrotetrazolate (DBX-1) and tetraaminecis-bis(5-nitrotetrazolato) cobalt(III) perchlorate (BNCP), which prepared from 5-AT by Sandmeyer reaction. This reaction usually happened slightly blast due to release heat nitrogen gas during whole procession. In order enhance safety reaction, differential scanning calorimetry (DSC) used measure exothermal solution intermediate, calorimeter (RCle) assess thermal risk, adiabatic (RAC) estimate stability technological process hydronium copper(II)-tris(5-nitrotetrazolate) trihydrate (Cu(H-NT)(NT) 2 (H O) 4 ) intermediate for 5-NaNT. The Td24 168h, maximum temperature synthesis (MTSR) 17°C, rise 43 K, accumulation 9%, specific 3654 kJ/kg. result shown that dangerous chemical processes risk rank 1, mean this relatively low. Matrix evaluation runaway level it immediately cut off feed useful if cooling system out service.