Lead azide

Lead azide is a chemical compound that is often used in the manufacture of detonators due to its sensitivity to shock and friction. It is an inorganic compound with the formula Pb(N3)2.

History

Lead azide was first prepared in 1891 by the German chemist Theodor Curtius. It was initially used as a laboratory reagent, but its explosive properties were soon recognized and it began to be used in detonators.

Properties

Lead azide is a white crystalline solid that is insoluble in water. It is highly sensitive to shock, friction, and heat, which can cause it to explode. The explosion produces lead and nitrogen gas.

Production

Lead azide is typically produced by reacting sodium azide with lead nitrate. The reaction produces lead azide and sodium nitrate. The lead azide is then precipitated out of the solution and dried.

Uses

The primary use of lead azide is in the manufacture of detonators. It is also used in some types of fireworks.

Safety

Due to its explosive nature, lead azide must be handled with care. It is toxic if ingested or inhaled, and it can cause skin and eye irritation.

See also

• Lead styphnate
• Lead nitrate
• Sodium azide