Definition - What does Explosive Chemical mean?
An explosive chemical is a solid or liquid chemical which, in and of itself, is capable of a chemical reaction by producing gas at a temperature and pressure sufficient enough to cause harm to the surrounding environment. The majority of explosives are chemical, as opposed to fuel, based. Although chemical explosives do not have as much potential energy as fuel, chemical explosives have a higher level of energy release, resulting in a greater blast pressure.
Safeopedia explains Explosive Chemical
When heat or shock is applied to a chemical explosive, it reacts by decomposing or rearranging its molecules very rapidly. This results in the production of much heat and gas. In order for a chemical to be classified as an explosive it must rapidly expand it gas production or rapidly heat its surrounding area. It must also evolve heat, react very quickly and solely initiate a reaction.