Thermolysis, Nonisothermal Decomposition Kinetics, Specific Heat Capacity and Adiabatic Time-to-Explosion of [Cu(NH_3)_4](DNANT)_2 (DNANT= Dinitroacetonitrile)

摘要

A new energetic copper complex of dinitroacetonitrile (DNANT), [Cu(NH_3)_4](DNANT)_2, was first synthesized through an unexpected reaction. The thermal decomposition of [Cu(NH_3)_4](DNANT)_2 was studied with DSC and TG/DTG methods. The gas products were analyzed through a TG-FTIR-MS method. The nonisothermal kinetic equation of the exothermic process is dα/dT = 10~(10.92)/β4(1 ? α)[?ln(1 ? α)]~(3/4) exp(?1.298 × 10~5/RT). The self-accelerating decomposition temperature and critical temperature of thermal explosion are 217.9 and 221.0 °C. The specific heat capacity of [Cu(NH_3)_4](DNANT)_2 was determined with a micro-DSC method, and the molar heat capacity is 512.6 J mol~(?1) K~(?1) at 25 °C. Adiabatic time-toexplosion of Cu(NH_3)_4(DNANT)_2 was also calculated to be about 137 s.