Copper(II) azide

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Copper(II) azide
Copper (II) azide.JPG
[1]
Identifiers
CAS number 14215-30-6
ChemSpider 21106430 YesY
Jmol-3D images Image 1
Image 2
Properties
Molecular formula Cu(N3)2
Molar mass 147.586 g/mol
Appearance brown orthorhombic crystals
Density 2.6 g/cm 3
Melting point (explodes)
Hazards
EU classification Toxic (T)
Explosive (E)
NFPA 704
Flammability code 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g., propane Health code 3: Short exposure could cause serious temporary or residual injury. E.g., chlorine gas Reactivity code 4: Readily capable of detonation or explosive decomposition at normal temperatures and pressures. E.g., nitroglycerin Special hazards (white): no codeNFPA 704 four-colored diamond
Flash point  ?
Related compounds
Other cations Lead(II) azide
Silver azide
Sodium azide
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY (verify) (what is: YesY/N?)
Infobox references

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 copper(II) nitrate (Cu(NO3)2) and sodium azide.

Cu(NO3)2 + 2 NaN3 → Cu(N3)2 + 2 NaNO3

It can be destroyed by nitric acid to form non-explosive products:

Cu(N3)2 + 2HNO3 → 3N2 + 2NO2 + Cu(OH)2

References[edit]

  1. ^ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 4–55, ISBN 0-8493-0594-2