Abstract
An analysis is described of the kinetics and mechanisms of thermal decomposition of 2,4,6-trinitrotoluene (TNT) in the bulk phase. The basis is the decomposition kinetics of mono-, di-, and trinitrobenzene and the corresponding toluene derivatives in the temperature dimension. Below about 770 o C (≥100 μs reaction time), the initiation chemistry is dominated by oxidation reactions of the methyl group. Above about 770 o C C-NO 2 homolysis dominates the initiation process. Shock initiation is therefore dominated by C-NO 2 homolysis while -CH 3 group oxidation and C-NO 2 homolysis compete in controlling impact initiation. Neither of these processes controls the time-to-explosion at times longer than 0.1 s
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