Chemistry:Iron(III) azide
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3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| Fe(N 3) 3 | |
| Molar mass | 181.9053 g/mol |
| Appearance | Dark brown solid[1] |
| Melting point | Explodes |
| Solubility | Soluble in methanol |
| Hazards | |
| GHS pictograms | 
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| GHS Signal word | Danger |
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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(N
3)
3. It is an extremely explosive, impact-sensitive, hygroscopic dark brown solid. This compound is used to prepare various azidoalkanes,[clarification needed] such as n-butyl azide.[2]
Preparation
This compound is prepared by the reaction of sodium azide and iron(III) sulfate in methanol:[2]
- 6 NaN
3 + Fe
2(SO
4)
3 → 2 Fe(N
3)
3 + 3 Na
2SO
4
Iron(III) azide can also be formed by pulse irradiation[vague] 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.
References
- ↑ "10" (in en). Chemical Abstracts: Volume 11. the University of Michigan: American Chemical Society. 1917. p. 2901.
- ↑ 2.0 2.1 Andrew D. White (2001). "Iron(III) Azide" (in en). Encyclopedia of Reagents for Organic Synthesis (John Wiley & Sons, Ltd). doi:10.1002/047084289X.ri053. ISBN 0471936235.
- ↑ George V. Buxton; Igor Janovský (1976). "Mechanism of the oxidation of iron(II) by the azide radical" (in en). Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases 72: 1884–1886. doi:10.1039/F19767201884.
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