STUDIES ON ENERGETIC COMPOUNDS .3. KINETICS OF THERMOLYSIS OF DIMETHYLANILINIUM NITRATES

Thermolysis of dimethylanilinium nitrates (DMAN) has been carried out by TG, DTA, ignition delay, impact and friction sensitivity measuremen ts. Although kinetics of the thermal decomposition of these salts were evaluated by fitting TG data in nine-mechanism-based kinetic models, only Avrami-Erofeev (n = 2, 3) and contracting area (n = 2) gave the b est fits. A reaction scheme accounting for the decomposition products is proposed; it involves proton transfer leading to the formation of a n arylamine and HNO3. The other probable routes (evolution of NH,) hav e also been suggested. The aryl nucleus seems to be oxidized by NO2, H NO3 or its decomposition products prior to ignition, and gaseous produ cts are formed.