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8401630 
Journal Article 
Thermal hazard analysis of dinitrotoluene nitration 
Chen, LP; Chen, WH; Peng, JH; Liu, RH 
2010 
1 
Hanneng Cailiao / Chinese Journal of Energetic Materials
ISSN: 1006-9941 
18 
6 
706-710 
Chinese 
Differential Scanning Calorimeter (DSC), Accelerating Rate Calorimeter (ARC) and Reaction Calorimeter (RC) were used to study thermal hazard of dinitrotoluene (DNT) nitration. DSC results show onset temperature T0 of trinitrotoluene (TNT) is 298.38°C, which is lower than that of DNT. ARC results demonstrate that TNT starts to decompose at 232°C, and TD24 of TNT decomposition is about 224°C. Based on RC test results, there is a large amount of heat release during DNT nitration, and the heat generation at 110°C is 1.4 times heat generation at 90°C, in which a large part comes from the exothermal side reaction actually. Therefore, temperature should be controlled strictly to avoid acutely exothermal side reaction and product decomposition. 
Dinitrotoluene; Nitration; Reaction calorimetry; Security technology & engineering; Thermal hazard