Iron(Iii) Azide

Iron(III) azide
Names
	Other names Ferric azide; Iron triazide;
Identifiers
CAS Number	14215-32-8;
3D model (JSmol)	Interactive image;
ChemSpider	57449725;
PubChem CID	57348355;
CompTox Dashboard (EPA)	DTXSID00721622;
	InChI InChI=1S/Fe.3N3/c;31-3-2/q+3;3-1 Key: MKNZTJIHKCVUHC-UHFFFAOYSA-N;
	SMILES [N-]=[N+]=[N-].[N-]=[N+]=[N-].[N-]=[N+]=[N-].[Fe+3];
Properties
Chemical formula	Fe(N; 3); 3
Molar mass	181.9053 g/mol
Appearance	Dark brown solid
Melting point	Explodes
Solubility	Soluble in methanol
Hazards
GHS pictograms
GHS Signal word	Danger
Related compounds
Other cations	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).
	Infobox references

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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[1] "10" (in en). Chemical Abstracts: Volume 11. the University of Michigan: American Chemical Society. 1917. p. 2901.

[:)-2] 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.

[3] 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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[2]

[3]

Names
Other names Ferric azide Iron triazide
Identifiers
CAS Number	14215-32-8
3D model (JSmol)	Interactive image
ChemSpider	57449725
PubChem CID	57348355
CompTox Dashboard (EPA)	DTXSID00721622
InChI InChI=1S/Fe.3N3/c;31-3-2/q+3;3-1 Key: MKNZTJIHKCVUHC-UHFFFAOYSA-N
SMILES [N-]=[N+]=[N-].[N-]=[N+]=[N-].[N-]=[N+]=[N-].[Fe+3]
Properties
Chemical formula	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
GHS Signal word	Danger
Related compounds
Other cations	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).
Infobox references