NEW CORRELATIONS OF THE THERMOGRAVIMETRIC ANALYSIS DATA OF SOME COMMERCIAL EXPLOSIVES

Stability of thirteen commercial explosives is specified by means of i sothermal and non-isothermal thermogravimetric analysis (TGA). There i s a linear dependence between the positions of TGA onsets, or characte ristic DTG peaks, and amounts of explosive samples used. Analysis of t he dependence for TGA onsets gave results which are correlated with ex plosion temperatures. A relationship is also found with temperatures o f explosive points (i.e. autoignition temperatures) for the explosives studied. In connection with the former correlation, a value of explos ion temperature of 3360-degrees-C is assessed for Composition B. In th e case of isothermally TGA of explosives which contain liquid nitroest ers, evaporation of these liquid parts is confirmed as the dominant pr ocess in the resulting mass losses.