Thermochemistry, Tautomerism, and Thermal Stability of 5,7-Dinitrobenzotriazoles.

ABSTRACT: Nitro derivatives of benzotriazoles are safe energetic materials with remarkable thermal stability. In the present study, we report on the kinetics and mechanism of thermal decomposition for 5,7-dinitrobenzotriazole (DBT) and 4-amino-5,7-dinitrobenzotriazole (ADBT). The pressure differential scanning calorimetry was employed to study the decomposition kinetics of DBT experimentally because the measurements under atmospheric pressure are disturbed by competing evaporation. The thermolysis of DBT in the melt is described by a kinetic scheme with two global reactions. The first stage is a strong autocatalytic process that includes the first-order reaction (E_a1^I = 173.9 ± 0.9 kJ mol^-1, log(A₁^I

SUBMITTER: Melnikov IN 

PROVIDER: S-EPMC10049112 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature