Chemistry:Gadolinium(III) bromide

Gadolinium(III) bromide

Names
IUPAC name Gadolinium(III) bromide
Other names Gadolinium tribromide Gadolinium bromide
Identifiers
CAS Number	13818-75-2
3D model (JSmol)	Interactive image Interactive image
EC Number	237-494-4
PubChem CID	24872012
InChI InChI=1S/3BrH.Gd/h3*1H;/q;;;+3/p-3 Key: KGOKDPWKDBWITQ-UHFFFAOYSA-K
SMILES Br[Gd](Br)Br [Br-].[Br-].[Br-].[Gd+3]
Properties
Chemical formula	GdBr3
Molar mass	396.96g
Density	2.844 g/cm3<
Melting point	770 °C (1,420 °F; 1,040 K)
Boiling point	1,455 °C (2,651 °F; 1,728 K)
Solubility in water	Soluble
Solubility	Also soluble in THF, 1,2-Diethoxyethane, p-dioxane, and alkyl amine.
Hazards
GHS pictograms
GHS Signal word	Warning
GHS hazard statements	H315, H319, H335
GHS precautionary statements	P261, P305+351+338
Related compounds
Other anions	Gadolinium(III) fluoride Gadolinium(III) chloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Gadolinium(III) bromide is a crystalline compound of gadolinium atoms and three bromine atoms. This salt is hygroscopic.

Preparation

Gadolinium(III) bromide can be obtained by the reaction between gadolinium and hydrobromic acid:

[math]\displaystyle{ \mathrm{2 \ Gd + 6 \ HBr \longrightarrow 2 \ GdBr_3 + 3 \ H_2} }[/math]

The anhydrous form can be obtained by heating the hydrate with ammonium bromide.