Which type of explosive is characterized by its rapid chemical reaction?

High explosives are characterized by their rapid chemical reaction, which results in a shock wave that travels through the explosive material at supersonic speeds. This rapid decomposition is what defines high explosives, distinguishing them from low explosives, which burn at a slower rate and primarily rely on the production of gas to create pressure rather than a shock wave.

High explosives can be further classified into sensitive and insensitive types, where sensitive explosives can detonate with minimal initiation energy, while insensitive ones require a more significant force to detonate. Examples of high explosives include TNT, RDX, and HMX, which are utilized in military munitions and demolition operations due to their effective energy output and ability to create a significant blast effect.

Unlike high explosives, blasting agents are typically not sensitive to shock or friction and require a booster to detonate. Propellants, on the other hand, are designed to produce gas for propulsion, such as in firearms or rockets, rather than creating a high-velocity shock wave typically associated with the destructive power of high explosives.