Kinetics of Decomposition of 1,1-Diamino-2,2-Dinitroethylene (Fox-7): 3. Reaction in Solutions

The kinetics of the thermal decomposition of 1,1-diamino-2,2-dinitroethylene (FOX-7) in solutions at temperatures of 180 to 240°C and a concentration of FOX-7 of ~1 wt % is studied by the gage and calorimetric methods. Chloro- and o-dichlorobenzene, nitrobenzene, and n-nitrotoluene are used as solvents. The dependence of the decomposition rate on the polarity of the solvent is shown, and the kinetic parameters of the reaction in the solution are determined. The data obtained are used to discuss the reaction mechanism and predict the rates of conversion of FOX-7 in the liquid and solid states.