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A link between impact sensitivity of energetic compounds and their activation energies of thermal decomposition |
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| Authors: | Narges Zohari Mohammad Hossein Keshavarz Seyed Abolfazl Seyedsadjadi |
| Institution: | 1. Department of Chemistry, Iran University of Science and Technology, P. O. Box 16846-13114, Tehran, Islamic Republic of Iran 2. Department of Chemistry, Malek-Ashtar University of Technology, P. O. Box 15875-1774, Tehran, Islamic Republic of Iran 3. Department of Chemistry, Malek-ashtar University of Technology, P. O. Box 83145-115, Shahin-shahr, Isfahan, Islamic Republic of Iran |
| Abstract: | A new relationship is introduced between impact sensitivity of energetic compounds and their activation energies of thermal decomposition. In this relationship, the impact sensitivity of an energetic compound with general formula CaHbNcOd is a function of its activation energy of thermal decomposition as well as the ratio of \( \left( {\frac{{n_{\text{H}} }}{{n_{\text{O}} }}} \right) \) and the contribution of specific molecular structural parameters. The new correlation can help us to elucidate the mechanism of initiation of energetic materials by impact. It can be used to predict the magnitude of impact sensitivity of new energetic materials. The new correlation has the root mean square and the average deviations of 2.22 and 1.79 J, respectively, for 40 energetic compounds with different molecular structures. The proposed new method is also tested for 11 energetic compounds, which have complex molecular structures, e.g., 4,10-dinitro-2,6,8,12-tetraoxa-4,10-diazaisowurtzitane and 1,3,7,9-tetranitrophenoxazine. |
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