Welcome to the explosives section of DavidThePyro's pyrotechnics website.

The definition of an explosive:
A mixture or chemical compound that undergoes a powerful, fast exothermic chemical reaction is called an explosive. Explosive reactions (explosions) happen when the explosive recieves enough friction, shock, pressure, or heat. Low Explosives deflagrate, while high explosives detonate.

Combustion vs. Deflagration vs. Detonation
Combustion is an exothermic reaction between oxygen and a hydrocarbon.
Deflagration is an exothermic reaction in which the particles of the explosive react at a rate less than the speed of sound through that material.
Detonation is another exothermic reaction in which the particles of the explosive react at a rate greater than the speed of sound through that material.
Note: Some explosives, called primary or initiating explosives, undergo deflagration which happens so fast it changes into detonation. Examples of these explosives are acetone peroxide (AP), metal fulminates, and hexamethylenetriperoxidediamine (HMTD).