Copper(II) azide

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

Copper(II) azide[1]

Names
IUPAC name Copper(II) azide
Identifiers
CAS Number	14215-30-6^Y
3D model (JSmol)	Interactive image Interactive image
ChemSpider	21106430^Y
PubChem CID	57348354
UNII	43SX07O4UP^Y
CompTox Dashboard (EPA)	DTXSID00931365
InChI InChI=1S/Cu.2N3/c;2*1-3-2/q+2;2*-1^Y Key: SXHYOTRZGGGMEV-UHFFFAOYSA-N^Y InChI=1/Cu.2N3/c;2*1-3-2/q+2;2*-1 Key: SXHYOTRZGGGMEV-UHFFFAOYAL
SMILES [N-]=[N+]=[N-][Cu+2][N-]=[N+][N-] [Cu+2].[N-]=[N+]=[N-].[N-]=[N+]=[N-]
Properties
Chemical formula	Cu(N3)2
Molar mass	147.586 g/mol
Appearance	brown orthorhombic crystals
Density	2.6 g/cm ^3
Melting point	(explodes)
Hazards
GHS pictograms
GHS Signal word	Danger
NFPA 704 (fire diamond)	0 3 4
NIOSH (US health exposure limits):
PEL (Permissible)	TWA 1 mg/m^3 (as Cu)[2]
REL (Recommended)	TWA 1 mg/m^3 (as Cu)[2]
IDLH (Immediate danger)	TWA 100 mg/m^3 (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).
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Infobox references

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 N₃⁻ → 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. NIOSH Pocket Guide to Chemical Hazards. "#0150". National Institute for Occupational Safety and Health (NIOSH).

Salts and covalent derivatives of the azide ion
HN3																	He
LiN3	Be(N3)2											B(N3)3	CH3N3, C(N3)4	N(N3)3,H2N—N3	O	FN3	Ne
NaN3	Mg(N3)2											Al(N3)3	Si(N3)4	P	SO2(N3)2	ClN3	Ar
KN3	Ca(N3)2	Sc(N3)3	Ti(N3)4	VO(N3)3	Cr(N3)3, CrO2(N3)2	Mn(N3)2	Fe(N3)2, Fe(N3)3	Co(N3)2, Co(N3)3	Ni(N3)2	CuN3, Cu(N3)2	Zn(N3)2	Ga(N3)3	Ge	As	Se(N3)4	BrN3	Kr
RbN3	Sr(N3)2	Y	Zr(N3)4	Nb	Mo	Tc	Ru(N3)6^3−	Rh(N3)6^3−	Pd(N3)2	AgN3	Cd(N3)2	In	Sn	Sb	Te	IN3	Xe(N3)2
CsN3	Ba(N3)2		Hf	Ta	W	Re	Os	Ir(N3)6^3−	Pt(N3)6^2−	Au(N3)4^−	Hg2(N3)2, Hg(N3)2	TlN3	Pb(N3)2	Bi(N3)3	Po	At	Rn
Fr	Ra(N3)2		Rf	Db	Sg	Bh	Hs	Mt	Ds	Rg	Cn	Nh	Fl	Mc	Lv	Ts	Og
		↓
		La	Ce(N3)3, Ce(N3)4	Pr	Nd	Pm	Sm	Eu	Gd(N3)3	Tb	Dy	Ho	Er	Tm	Yb	Lu
		Ac	Th	Pa	UO2(N3)2	Np	Pu	Am	Cm	Bk	Cf	Es	Fm	Md	No	Lr