Considerations on the Sensitivity of Polynitroaromatic Explosives.

Some papers recently published by other authors on impact sensitivity and on thermal sensitivity of polynitroaromatic explosives are studied. With respect to impact sensitivity, it was noticed that there are present two classes of explosives for which h 50% is a linear function of the oxygen balance OB//1//0//0. These two correlations can lead to only one, if in the calculation of the oxygen balance-CH alpha linkages are not taken into account. With respect to thermal sensitivity, it was shown that E//A, the activation energy of thermal decomposition is a linear function of log A, the logarithm of pre-exponential factor. Consequently, DELTA H***, the activation enthalpy, is proportional to log A, DELTA H*** is proportional to the entropy DELTA S***, and for tetryls DELTA H*** is proportional to DELTA G***//h//m, the activation free enthalpy computed for the harmonic mean of the temperatures.