Copper(II) azide
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| Names | |
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| IUPAC name
Copper(II) azide
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| Other names
Cupric azide
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| Cu(N3)2 | |
| Molar mass | 147.586 g/mol |
| Appearance | brown orthorhombic crystals |
| Density | 2.6 g/cm3 |
| Melting point | Explodes when heated |
| Hazards | |
| GHS labelling: | |
 
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| Danger | |
| NFPA 704 (fire diamond) | |
| NIOSH (US health exposure limits): | |
PEL (Permissible)
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TWA 1 mg/m3 (as Cu)[2] |
REL (Recommended)
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TWA 1 mg/m3 (as Cu)[2] |
IDLH (Immediate danger)
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TWA 100 mg/m3 (as Cu)[2] |
| Related compounds | |
Other cations
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Lead(II) azide Silver azide Sodium 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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Copper(II) azide is a medium density explosive with the molecular formula Cu(N3)2.
Uses
[edit]Copper azide is very explosive and is too sensitive for any practical use unless handled in solution.
Preparation
[edit]Copper azide can be prepared by a metathesis reaction between water-soluble sources of Cu2+ and azide ions. (Spectator ions omitted in reaction below).
- Cu2+ + 2 N−3 → Cu(N3)2
It can be destroyed by concentrated nitric acid to form non-explosive products, these being nitrogen, nitrogen oxides and copper(II) nitrate.
References
[edit]- ^ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, Florida: CRC Press, pp. 4–55, ISBN 0-8493-0594-2
- ^ a b c NIOSH Pocket Guide to Chemical Hazards. "#0150". National Institute for Occupational Safety and Health (NIOSH).
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