Barium azide

Structural formula
${\displaystyle \mathrm {\ {\Biggl [}} }$ ${\displaystyle \mathrm {\ \!\ {\Biggr ]}_{2}^{-}} }$
General
Surname	Barium azide
other names	Barium diazide
Molecular formula	Ba (N 3 ) 2
Brief description	white solid
External identifiers / databases
CAS number 18810-58-7 EC number 242-594-6 ECHA InfoCard 100.038.706 PubChem 49868104 Wikidata Q424806
properties
Molar mass	221.37 g mol −1
Physical state	firmly
density	2.936 g cm −3
Melting point	120 ° C (decomposition)
solubility	soluble in water (173 g l −1 at 17 ° C)
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 200-301 + 331-315-319-335 P: 210-240-264-280-305 + 351 + 338-310
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Barium azide is an unstable chemical compound from the group of barium compounds and azides .

Extraction and presentation

Barium azide, by reaction of hydrazoic acid with barium hydroxide are obtained.

${\displaystyle \mathrm {2\ HN_{3}+Ba(OH)_{2}\longrightarrow Ba(N_{3})_{2}+2\ H_{2}O} }$

properties

Barium azide is a white solid that is soluble in water. It decomposes explosively from a temperature above 120 ° C, producing nitrogen and barium nitride. Dry barium azide is explosive by impact or heat and ignites in the air by itself. The compound is under a load of 240 N friction sensitive .

Individual evidence

1. ↑ ^{a b c d e f g} Entry on barium azide in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .
2. ↑ Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 930.
3. ↑ Köhler, J .; Meyer, R .; Homburg, A .: Explosivstoffe , tenth, completely revised edition. Wiley-VCH, Weinheim 2008, ISBN 978-3-527-32009-7 .