A heavy-metal-free compound, though it sometimes suffers from poor performance in extreme cold.
): Extensively used in the 19th century, this compound was one of the first practical primary explosives, famously used by Alfred Nobel in his detonators, but it is highly toxic and expensive. Lead Azide (
): Frequently used in percussion primers due to its high sensitivity to fire and electrostatic discharge. 3. The "Holy Grail": Green Primary Explosives Primary Explosives
): The most common military primary, preferred for its stability under loading and excellent initiation ability. Lead Styphnate ( C6HN3O8Pbcap C sub 6 cap H cap N sub 3 cap O sub 8 cap P b
Initiate less sensitive secondary explosives, which are safer to handle but hard to light. 2. Legacy Primary Explosives A heavy-metal-free compound
Recent advances include organic compounds such as 6-azido-8H-tetrazolo[1, 5-b][1, 2, 3]triazolo[4, 5-d]pyridazine. 4. Safety Considerations
Lead azide can react with atmospheric CO2CO sub 2 Primary Explosives
Remote-operated facilities are often required to manufacture and test these materials to protect personnel. Summary Table: Legacy vs. Green Primaries Legacy Primaries (Lead Azide) Green Primaries (e.g., DBX-1) Toxicity High (Heavy Metal) Low (Environmentally Friendly) Sensitivity High (Controlled) Stability Moderate/Good Good Thermal Stability Replacement Status