From BTO2− to HBTO− insensitive energetic salt: a route to boost energy

摘要: A promising strategy was utilized to boost the detonation performance of energetic salts. The desired 4,4′,5,5′-tetraamino-4H,4′H-[3,3′-bi(1,2,4-triazole)]-1,1′-diium 1′-hydroxy-1H,1′H-[5,5′-bitetrazol]-1-olate [TABT2+(HBTO−)2] synthesized by controlling ratio between cation and anion (1 : 2) during synthesis 1H,1′H-[5,5′-bitetrazole]-1,1′-bis(olate) (TABT2+BTO2−). bivalent cation-bivalent salt changed into cation-univalent easily as confirmed single-crystal X-ray diffraction, NMR spectroscopy, IR DSC, elemental analysis. Compared with TABT2+BTO2−, density, heat formation, velocity pressure TABT2+(HBTO−)2 increased 0.165 g cm−3 (10.0%), 1.81 kJ g−1 (111.0%), 549 m s−1 (6.8%) 11.5 GPa (52.0%), respectively. Meanwhile, enhanced properties HBTO− do not come at expense molecular stability, just from changing one insensitive explosive another more (IS > 40 J, FS 360 N, Tdec.,onset = 271.8 °C). This work provides a route enhance