Ammonium azide, with the chemical formula NH4N3, is a chemical compound composed of ammonium ions (NH4+) and azide ions (N3-). It is a highly unstable and sensitive explosive compound.

Ammonium azide is not commonly encountered or used due to its extreme instability and explosive nature. It is considered highly dangerous and is prone to spontaneous decomposition, which can lead to violent and explosive reactions. For this reason, it is not used in practical applications or commercial products.

Due to its hazards, handling, synthesizing, or storing ammonium azide requires specialized equipment, facilities, and expert knowledge. Even slight disturbances or temperature changes can trigger its explosive decomposition.

Because of the extreme danger posed by ammonium azide, it is not used in any mainstream industrial or laboratory applications. Researchers and chemists working with azides or other explosive compounds must exercise extreme caution and follow strict safety protocols to prevent accidents and ensure personal and environmental safety.