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Other names
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
Fe(N3)3 | |
Molar mass | 181.9053 g/mol |
Appearance | Dark brown solid[1] |
Melting point | Explodes |
Solubility | Soluble in methanol |
Hazards | |
GHS labelling: | |
Danger | |
Related compounds | |
Other cations
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Cobalt(II) azide Nickel(II) azide Copper(II) azide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Iron(III) azide, also called ferric azide, is a chemical compound with the formula Fe(N3)3. It is an extremely explosive, impact-sensitive, hygroscopic dark brown solid. This compound is used to prepare various azidoalkanes, such as n-butyl azide, from alkenes via formation of alkylboranes and subsequent anti-Markovnikov addition of azide group.[2]
This compound is prepared by the reaction of sodium azide and iron(III) sulfate in methanol:[2]
Iron(III) azide can also be formed by pulse gamma-irradiation of a mixture of iron(II) perchlorate, sodium azide, and hydrogen peroxide.[3] Under these conditions, a neutral N3 radical is formed, which oxidizes the iron(II) to iron(III); the iron(III) then promptly combines with azide ions.