Europium (III) bromide

Crystal structure
__  Eu 3+      __  Br -
Crystal system	orthorhombic
Space group	Ccmm (No. 63, position 2)
General
Surname	Europium (III) bromide
other names	Europium tribromide
Ratio formula	EuBr 3
Brief description	light gray solid
External identifiers / databases
CAS number 13759-88-1 560069-78-5 (hydrate) PubChem 83707 Wikidata Q15628204
properties
Molar mass	391.68 g mol −1
Physical state	firmly
Melting point	> 702 ° C
solubility	soluble in water
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 315-319-335 P: 261-305 + 351 + 338
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Europium (III) bromide is an inorganic chemical compound of europium from the group of bromides .

Extraction and presentation

Europium (III) bromide can be obtained by reacting europium with hydrogen bromide .

${\displaystyle \mathrm {2\ Eu+6\ HBr\longrightarrow 2\ EuBr_{3}+3\ H_{2}} }$

Europium (III) bromide hydrate can be converted into the anhydrate by dehydration with ammonium bromide .

properties

Europium (III) bromide is a light gray, strongly hygroscopic solid with a crystal structure of the plutonium (III) bromide type.

use

Europium (II) bromide can be obtained by reduction with hydrogen at 350 ° C.

${\displaystyle \mathrm {2\ EuBr_{3}+H_{2}\longrightarrow 2\ EuBr_{2}+2\ HBr} }$

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 I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 1077.
2. ↑ ^{a b c d} data sheet Europium (III) bromide hydrate, ≥99.99% trace metals basis from Sigma-Aldrich , accessed on April 24, 2014 ( PDF ).
3. ^ William M. Haynes: CRC Handbook of Chemistry and Physics, 93rd Edition . CRC Press, 2012, ISBN 1-4398-8049-2 , pp. 63 ( limited preview in Google Book search).
4. ↑ Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 1081.