Copper(II) azide
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_azide.JPG) | |
| Names | |
|---|---|
| IUPAC name Copper(II) azide | |
| Other names Cupric azide | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider | |
PubChem CID | |
| 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: | |
  | |
| Danger | |
| NFPA 704 (fire diamond) | |
| NIOSH (US health exposure limits): | |
PEL (Permissible) | TWA 1 mg/m3 (as Cu)[2] |
REL (Recommended) | TWA 1 mg/m3 (as Cu)[2] |
IDLH (Immediate danger) | TWA 100 mg/m3 (as Cu)[2] |
| Related compounds | |
Other cations | 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). | |
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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