Silver azide

Fulminating silver

Fixed

4.98 g · cm -3

Template: Infobox chemical / molecular formula search is not possible

Silver azide is the silver salt of hydrazoic acid. It is a highly explosive substance, is used as the initiating explosive for the ignition of explosives. It is also known as silver fulminate, this trivial name, however, is ambiguous.

Representation

Silver azide can be prepared by the reaction of sodium azide with silver nitrate:

Properties

Silver azide is in the form of colorless needle crystals. It is extremely explosive, sensitive to shock and heat. In light exposure gradual darkening occurs. The softening temperature is 250 ° C, a complete melting occurs only at 300 ° C to a covered with silvery liquid ( with decomposition). A rapid heating to 300 ° C causes explosion. Its crystal structure is orthorhombic, with space group pseudotetragonal Ibam (a = 5.6, b = 5.9, c = 6.0 A). The enthalpy of formation is 279.5 kJ / mol.

Safety

Silver azide is a substance that breaks down explosive and detonated by shock and heat.