Copper(II) azide, with the chemical formula Cu(N3)2, is an inorganic compound containing copper in its +2 oxidation state, bonded to two azide ions (N3^-). It is a highly sensitive and explosive compound.

Preparation of Copper(II) Azide: Copper(II) azide can be prepared by the reaction of copper(II) sulfate (CuSO4) with sodium azide (NaN3):

CuSO4 + 2 NaN3 → Cu(N3)2 + Na2SO4

Properties and Characteristics of Copper(II) Azide:

• Appearance: Copper(II) azide is a greenish or bluish-black solid, and it is often quite sensitive to light and shock.
• Explosive Nature: Copper(II) azide is highly sensitive to heat, light, friction, and impact, making it prone to detonation. As such, it is classified as a primary explosive and should be handled with extreme caution.
• Stability: Due to its highly explosive nature, copper(II) azide is not used or stored in its pure form.

Safety Considerations: Due to its extreme sensitivity and explosiveness, copper(II) azide is not used for practical applications. It is primarily of interest in academic research and chemical studies. Handling and working with copper(II) azide require specialized training, appropriate safety equipment, and a controlled environment.

Because of its dangerous properties, copper(II) azide is typically prepared and handled by experienced chemists in controlled laboratory settings, employing rigorous safety protocols and containment measures.

As with any hazardous chemicals, it is essential to consult the Material Safety Data Sheet (MSDS) and follow strict safety guidelines when working with copper(II) azide or any reactive compounds.