Explosion heat
The heat of explosion is a safety parameter of explosives as well as explosives , explosive preparations and propellants . It corresponds to the amount of heat that is released during the explosive decomposition of a substance. The value depends on the physical state of the decay products, which is why the values given for calorimetric comparisons are mostly based on liquid water.
Theoretically, the heat of the explosion can be estimated from the difference between the enthalpies of formation of the decay products and the starting materials according to Hess' theorem . For a meaningful comparability, uniform approaches apply based on the initial state of the explosive as solid or liquid as well as decay products cooled to normal conditions . The estimates can be quite complex because of the need to take into account equilibria such as water gas or Boudouard equilibrium .
The heat of the explosion is determined experimentally in a calorimetic bomb .
The detonation heat generated when an explosive detonates can differ from the explosion heat.
Individual evidence
- ↑ a b Köhler, J .; Meyer, R .; Homburg, A. Explosivstoffe, Tenth completely revised edition, Wiley-VCH Verlag GmbH & Co KGaA, Weinheim 2008, ISBN 978-3-527-32009-7