Barium azide

Barium azide
Names
	Other names barium dinitride
Identifiers
CAS Number	18810-58-7 ;
3D model (JSmol)	Interactive image;
ChemSpider	56472 ;
ECHA InfoCard	100.038.706
EC Number	242-594-6;
PubChem CID	62728;
UN number	1687
CompTox Dashboard (EPA)	DTXSID60908174 ;
	InChI InChI=1S/Ba.2N3/c;21-3-2/q+2;2-1 Key: UUXFWHMUNNXFHD-UHFFFAOYSA-N ;
	SMILES [Ba+2].[N-]=[N+]=[N-].[N-]=[N+]=[N-];
Properties
Chemical formula	BaN6
Molar mass	221.37 g/mol
Appearance	white crystalline solid
Odor	odourless
Density	2.936 g cm−3[1]
Melting point	126 °C (259 °F; 399 K)
Boiling point	160 °C (320 °F; 433 K) (initial decomposition)[2] >217 °C (deflagrates); 180 °C(initial decomposition),[3] 225 °C explosion
Solubility in water	11.5 g/100 mL (0 °C); 14.98 g/100mL (15.7 °C) ; 15.36 g/100mL (20 °C) ; 22.73 g/100mL (52.1 °C) ; 24.75 g/100mL (70 °C)[4]
Solubility in alcohol	0.017 g/100 mL (16 °C)[5]
Solubility in acetone	insoluble
Solubility in ether	insoluble
Hazards
Safety data sheet
EU classification (DSD) (outdated)	Highly toxic (T+); Dangerous for the environment (N)
R-phrases (outdated)	R1, R23, R25, R36, R37, R38
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	mg/kg (oral, rats/mice)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	verify (what is ?)
	Infobox references

Barium azide is an inorganic azide with the formula Ba(N₃)₂. Like most azides, it is explosive. It is less sensitive to mechanical shock than lead azide.

Uses

Barium azide can be used to make azides of magnesium, sodium, potassium, lithium, rubidium and zinc with their respective sulfates.[4]

Ba(N₃)₂ + Li₂SO₄ → 2LiN₃ + BaSO₄

It can also be used as a source for high pure nitrogen by heating:

Ba(N₃)₂ → Ba + 3N₂

This reaction liberates metallic barium, which is used as a getter in vacuum applications.

References

Fedoroff, Basil T.; Aaronson, Henry A.; Reese, Earl F.; Sheffield, Oliver E.; Clift, George D.; Dunkle, Cyrus G.; Walter, Hans; McLean, Dan C. (1960). Encyclopedia of Explosives and Related Items. 1. US Army Research and Development Command TACOM, ARDEC http://www.dtic.mil/get-tr-doc/pdf?AD=AD0257189. Missing or empty |title= (help)
Tiede, Erich (1916). "Die Zersetzung der Alkali- und Erdalkali-azide im Hochvakuum zur Reindarstellung von Stickstoff". Ber. Dtsch. Chem. Ges. (in German). 49 (2): 1742–1745. doi:10.1002/cber.19160490234.
Audrieth, L. F. (1934). "Hydrazoic Acid and Its Inorganic Derivatives". Chem. Rev. 15 (2): 169–224. doi:10.1021/cr60051a002.
H. D. Fair; R. F. Walker, eds. (1977). Physics and Chemistry of the Inorganic Azides. Energetic Materials. 1. New York and London: Plenum Press. ISBN 9781489950093.
Curtius, T.; Rissom, J. (1898). "Neue Untersuchungen über den Stickstoffwasserstoff N₃H". J. Prakt. Chem. (in German). 58 (1): 261–309. doi:10.1002/prac.18980580113.

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)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)₆³⁻	Rh(N₃)₆³⁻	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)₆³⁻	Pt(N₃)₆²⁻	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

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[Fedoroff-1] Fedoroff, Basil T.; Aaronson, Henry A.; Reese, Earl F.; Sheffield, Oliver E.; Clift, George D.; Dunkle, Cyrus G.; Walter, Hans; McLean, Dan C. (1960). Encyclopedia of Explosives and Related Items. 1. US Army Research and Development Command TACOM, ARDEC http://www.dtic.mil/get-tr-doc/pdf?AD=AD0257189. Missing or empty |title= (help)

[Ber.Dtsch.Chem-2] Tiede, Erich (1916). "Die Zersetzung der Alkali- und Erdalkali-azide im Hochvakuum zur Reindarstellung von Stickstoff". Ber. Dtsch. Chem. Ges. (in German). 49 (2): 1742–1745. doi:10.1002/cber.19160490234.

[Audrieth-3] Audrieth, L. F. (1934). "Hydrazoic Acid and Its Inorganic Derivatives". Chem. Rev. 15 (2): 169–224. doi:10.1021/cr60051a002.

[Energetic_Materials_Vol.1-4] H. D. Fair; R. F. Walker, eds. (1977). Physics and Chemistry of the Inorganic Azides. Energetic Materials. 1. New York and London: Plenum Press. ISBN 9781489950093.

[Curtiusandrissom-5] Curtius, T.; Rissom, J. (1898). "Neue Untersuchungen über den Stickstoffwasserstoff N₃H". J. Prakt. Chem. (in German). 58 (1): 261–309. doi:10.1002/prac.18980580113.

Barium azide

Uses

See also

References