Transition metal salts of 2, 4, 6-trinitroanilinobenzoic acid - potential energetic ballistic modifiers for propellants

Iron (Fe2+ and Fe3+), cobalt and nickel salts of 2,4,6-trinitroanilino benzoic acid have been synthesized, and characterized by elemental analysis, IR, metal content and explosive properties like impact and friction sensitivity. Differential thermal analysis shows the thermal stability of these salts as: ferrous, 270°C; ferric, 280°C; cobalt, 270°C; and nickel, 300°C. The impact sensitivity (h50%) of these salts are > 170 cm except for Fe3+ salt (156 cm). The friction sensitivity of all the salts were found to be > 36 kg. The salts were found to be devoid of any free acid present in them.