A novel method for risk assessment of electrostatic sensitivity of nitroaromatics through their activation energies of thermal decomposition

作者：Zohari Narges^*; Keshavarz Mohammad Hossein; Seyedsadjadi Seyed Abolfazl

来源：Journal of Thermal Analysis and Calorimetry, 2014, 115(1): 93-100.

DOI：10.1007/s10973-013-3328-4

• Nitroaromatic compounds
• Energetic materials
• Electric spark sensitivity
• Activation energy
• Safety

This study presents a novel relationship between electric spark sensitivity of nitroaromatic energetic compounds and their activation energies of thermal decomposition. The new correlation can help to elucidate the mechanism of initiation of energetic materials by electric spark. It can be used to predict the magnitude of electric spark sensitivity of new nitroaromatics, which is difficult to measure. The methodology assumes that electric spark sensitivity of a nitroaromatic energetic compound with general formula CaHbNcOd can be expressed as a function of its activation energy of thermal decomposition as well as optimized elemental composition and the contribution of specific molecular structural parameters. The new correlation has the root mean square and the average deviations of 1.43 and 1.17 J, respectively, for 22 nitroaromatic energetic compounds with different molecular structures. The proposed new method is also tested for eight nitroaromatic energetic compounds, which have complex molecular structures, e.g., 1,3,7,9-tetranitrophenoxazine, 2,4,6-tris(2,4,6-trinitrophenyl)-1,3,5-triazine, and 1-(2,4,6-trinitrophenyl)-5,7-dinitrobenzotriazole.

• 出版日期2014-1