Non-isothermal decomposition kinetics of [Cu(en)₂H₂O](FOX-7)₂·H₂O

Abstract

The thermal behavior and non-isothermal decomposition kinetics of [Cu(en)₂H₂O](FOX-7)₂·H₂O (en=ethylenediamine) were studied with DSC and TG-DTG methods. The kinetic equation of the exothermal process is dα/dt=(10^17.92/β)4α ^3/4exp(−1.688×10⁵/RT). The self-accelerating decomposition temperature and critical temperature of the thermal explosion are 163.3 and 174.8 °C, respectively. The specific heat capacity of [Cu(en)₂H₂O](FOX-7)₂·H₂O was determined with a micro-DSC method, with a molar heat capacity of 661.6 J·mol⁻¹·K⁻¹ at 25 °C. Adiabatic time-to-explosion was also estimated as 23.2 s. [Cu(en)₂H₂O](FOX-7)₂·H₂O is less sensitive.

Keywords

1,1-Diamino-2,2-dinitroethylene(FOX-7) / Copper complex / Non-isothermal decomposition kinetics / Thermal property

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