A fast and reliable screening for explosive properties of organic substances is a crucial and ongoing topic for the fine chemicals industry. However, many test systems require large amounts of material, especially for the evaluation of detonative properties, e.g. the BAM 50/60 Steel Tube Test, which may not be available in early stages of development.
Therefore, a CPVT with high-resolution pressure measurement (1 kHz) was implemented, based on Adolf Kahner's mini-autoclave system as described in Whitmore et al. (1999). To evaluate the violence of the decomposition reactions, the CPVT was calibrated according to a procedure as suggested in Knorr et al. (2007), which is based on comparing the maximum pressure rise rate and peak temperature data of standard materials with known explosive properties. Variations of this system are already implemented in some companies and proved its usefulness (Bodman & Chervin, 2004).
The use of this type of stability testing of energetic, organic materials was accompanied by parallel testing of the sample materials with several other screening tests, such as the Glass Cylinder Deflagration Test (VDI 2263-1, 1190), the UN Time/Pressure Test (UNDG MTC, 2015) and also by more simple screenings such as dynamic runs in DSC and in the Latolf Oven (VDI 2263-1, 1990).
This work compares and discusses the different test results, i.e. detonation and deflagration behaviour.