Copper(II) azide

Copper(II) azide is a medium density explosive with the molecular formula Cu(N3)2.
Uses.
Copper azide is very explosive and is too sensitive for any practical use unless handled in solution.
Preparation.
Copper azide can be prepared by a metathesis reaction between water-soluble sources of Cu2+ and azide ions. (Spectator ions omitted in reaction below).
It can be destroyed by concentrated nitric acid to form non-explosive products, these being nitrogen, nitrogen oxides and copper(II) nitrate.