Zirconium (III) bromide

Crystal structure
__ Zr 3+      __ Br -
General
Surname	Zirconium (III) bromide
other names	Zirconium tribromide
Ratio formula	ZrBr 3
Brief description	Dark green solid
External identifiers / databases
CAS number 24621-18-9 Wikidata Q15632873
properties
Molar mass	330.94 g mol −1
Physical state	Firmly
density	4.46 g cm −3
Melting point	310 ° C (decomposition)
solubility	Decomposes in water
safety instructions
GHS hazard labeling no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Zirconium (III) bromide is an inorganic chemical compound of zirconium from the group of bromides .

Extraction and presentation

Zirconium (III) bromide can be prepared by reduction of zirconium (IV) bromide with zirconium or aluminum are obtained.

${\displaystyle \mathrm {3\ ZrBr_{4}+Zr\longrightarrow 4\ ZrBr_{3}} }$

${\displaystyle \mathrm {3\ ZrBr_{4}+Al\longrightarrow 3\ ZrBr_{3}+AlBr_{3}} }$

properties

Zirconium (III) bromide is in the form of dark green, metallic needles. Its crystal structure is isotypical with that of β- titanium (III) chloride (a = 675 pm, c = 632 pm). It reacts with air humidity and in water with evolution of hydrogen .

Individual evidence

1. ↑ ^{a b c d} 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 , pp. 1354ff.
2. ↑ Roger Blachnik (Ed.): Paperback for chemists and physicists . Volume III: Elements, Inorganic Compounds and Materials, Minerals . founded by Jean d'Ans, Ellen Lax. 4th, revised and revised edition. Springer, Berlin 1998, ISBN 3-540-60035-3 , pp. 818 ( limited preview in Google Book search).
3. ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.