A Promising Perovskite Primary Explosive

A highly interesting primary explosive (DPPE-1) is reported, which consists of an organic-inorganic double perovskite structure reasonably different from the structure of traditional primary explosives. Its synthesis involves a simple green one-pot process, which makes this primary explosive both cost-effective and environmentally friendly. Single-crystal X-ray diffraction confirms its cubic structure to be similar to the well-known organic-inorganic hybrid perovskites formed through self-assembly of hierarchical structures. Detailed studies show that the new primary explosive DPPE-1 has an excellent comprehensive performance, such as high oxygen balance (-4.52%), high crystal density (2.88 g cm-3), high filling factor (80.7%), good environmental tolerance (to air, moisture, and light), reasonable thermal stability (Tdec = 161.3 ℃) and acceptable mechanical sensitivity (IS = 3.5 J; FS = 5.0 N). Most impressive is its ultra-high initiation performance (MPC ≤ 5 mg).