Pushing the Limit of Oxygen Balance on a Benzofuroxan Framework: K<sub>2</sub>DNDP as an Extremely Dense and Thermally Stable Material as a Substitute for Lead Azide
Krishna Pandey, Atharva Tiwari, Jatinder Singh, Prachi Bhatia, Priyanka Das, Dheeraj Kumar, Jean’ne M. Shreeve
Abstract
Because of environmental and health impacts, there is an ongoing necessity to develop sustainable primary explosives to replace existing lead-based analogues. Now we describe a potential primary explosive, dipotassium 4,6-dinitro-5,7-dioxidobenzo[c][1,2,5]oxadiazole 1-oxide (K 2 DNDP), which exhibits an excellent thermal stability ( T dec = 281 °C), positive oxygen balance (+4.79%), and a calculated crystal density of ρ = 2.274 g cm –3 at 100 K. Its physicochemical properties concomitantly with its straightforward synthesis make it a potential replacement for lead-based initiators.
Topics & Concepts
Explosive materialChemistryOxygen balanceOxideLimit (mathematics)Lead (geology)Balance (ability)OxadiazoleOxygenPrimary (astronomy)Combinatorial chemistryAzideOrganic chemistryPhysicsMedicineGeomorphologyMathematical analysisGeologyAstronomyPhysical medicine and rehabilitationMathematicsEnergetic Materials and CombustionCrystallography and molecular interactionsChemical Reactions and Mechanisms