Lead Azide Decomposition Equation

Lead azide (Pb(N3)2) is a highly explosive compound that is commonly used as a detonator in explosives, such as fireworks and ammunition. When lead azide is subjected to heat or shock, it rapidly decomposes into its constituent elements, lead and nitrogen gas, in an exothermic reaction. The chemical equation for the decomposition of lead azide is:

2Pb(N3)2(s) → 3N2(g) + Pb(s)

This equation shows that two molecules of lead azide decompose into three molecules of nitrogen gas and one molecule of solid lead. The reaction is highly exothermic, meaning it releases a large amount of energy in the form of heat and light. This energy release is what makes lead azide such an effective detonator.

The decomposition of lead azide occurs through a complex series of reactions. Initially, the lead azide molecule is destabilized by the addition of thermal energy or mechanical shock. This leads to the formation of highly reactive intermediates, such as metallic azides and nitrogen radicals. These intermediates then react with each other to produce nitrogen gas and solid lead.

The decomposition of lead azide is a highly controlled process in commercial applications. Explosive devices, such as fireworks and ammunition, are designed to use the energy released during the decomposition of lead azide to initiate a larger explosive reaction. By carefully controlling the rate of decomposition, the timing and intensity of these explosions can be precisely regulated.