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Copper(II) azide [1]
Names
IUPAC name
Copper(II) azide
Other names
Cupric azide
Identifiers
3D model ( JSmol)
ChemSpider
PubChem CID
UNII
  • InChI=1S/Cu.2N3/c;2*1-3-2/q+2;2*-1 checkY
    Key: SXHYOTRZGGGMEV-UHFFFAOYSA-N checkY
  • InChI=1/Cu.2N3/c;2*1-3-2/q+2;2*-1
    Key: SXHYOTRZGGGMEV-UHFFFAOYAL
  • [N-]=[N+]=[N-] [Cu+2] [N-]=[N+] [N-]
  • [Cu+2].[N-]=[N+]=[N-].[N-]=[N+]=[N-]
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:
GHS01: Explosive GHS06: Toxic
Danger
NFPA 704 (fire diamond)
NFPA 704 four-colored diamond Health 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gas Flammability 0: Will not burn. E.g. water Instability 4: Readily capable of detonation or explosive decomposition at normal temperatures and pressures. E.g. nitroglycerin Special hazards (white): no code
3
0
4
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).
checkY  verify ( what is checkY☒N ?)

Copper(II) azide is a medium density explosive with the molecular formula Cu( N3)2.

Uses

Copper azide is very explosive and is too sensitive for any practical use unless handled in solution.

Preparation

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

  1. ^ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, Florida: CRC Press, pp. 4–55, ISBN  0-8493-0594-2
  2. ^ a b c NIOSH Pocket Guide to Chemical Hazards. "#0150". National Institute for Occupational Safety and Health (NIOSH).


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