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Bromine azide
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Bromine azide is an explosive inorganic compound with the formula . It has been described as a crystal or a red liquid at room temperature. It is highly sensitive to small variations in temperature and pressure, with explosions occurring at Δp (pressure change) ≥ 0.05 upon crystallization, thus extreme caution must be observed when working with this chemical.


Preparation
Bromine azide may be prepared by the reaction of with . This reaction forms bromine azide and :


Structure
The high sensitivity of bromine azide has led to difficulty in discerning its crystal structure. Despite this, a crystal structure of bromine azide has been obtained using a miniature procedure with focused radiation. In contrast to , which forms an endless chain-like structure upon crystallization, forms a helical structure. Each molecule adopts a trans- bent structure, which is also found in the gas phase.


Reactions
Bromium azide adds to both through and free-radical addition, each giving an opposite orientation in the products. The ionic addition occurs in trans. Reactions involving bromine azide are difficult to work with. The molecule is very reactive and is known to explode easily. This makes it a key reagent in explosives.
(1995). 9780849386718, CRC Press.
experiments with bromine azide have found that of a small sample of bromine azide resulted in dissociation of the entire sample, making it unstable. Similar samples with azide molecules did not show such an effect. This shows bromine azide's unstable tendencies in that even in the presence of sunlight, bromine azide will be a reactive molecule.

Bromine azide further reacts with silver azide to produce a very unstable of , , which decomposes to dinitrogen above .


Safety
Great care must be taken when handling bromine azide as it is potentially toxic and is able to explode under various conditions. Concentrated solutions in organic solvents may also explode. The liquid explodes on contact with , , , or . When heated to decomposition it emits highly toxic fumes of bromine and explodes. The amount of compound used during experimentation should be limited to 2 mmol. It also poses a potential moderate fire hazard in the form of vapor by chemical reaction. It is also a powerful oxidant.

It has been banned from transport in the by the US Department of Transportation.

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