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Chemical compound
Caesium azide or cesium azide is an inorganic compound of caesium and nitrogen. It is a salt of azide with the formula .
Structure.
 adopts the same structure as , , and , crystallizing in a tetragonal distorted caesium chloride structure where each azide ion coordinates to eight metal cations, and each metal cation coordinates to eight terminal N centers. When heated to 151°C, it transitions to a cubic structure.
Preparation and reactions.
Caesium azide can be prepared from the neutralization reaction between hydrazoic acid and caesium hydroxide:
Caesium carbonate can also be used as the base:
Caesium sulfate reacts with barium azide to form insoluble barium sulfate and caesium azide:
The thermal decomposition of "in vacuo" can be used as a method of generating high purity caesium metal:
References.
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