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;
ECHA InfoCard	100.034.072
EC Number	237-494-4;
PubChem CID	24872012;
CompTox Dashboard (EPA)	DTXSID9065653 ;
	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 labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P305+P351+P338
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:^[3]

\mathrm {2\ Gd+6\ HBr\longrightarrow 2\ GdBr_{3}+3\ H_{2}}

The anhydrous form can be obtained by heating the hydrate with ammonium bromide.^[3]

^ ^a ^b ^c ^d "Gadolinium(III) bromide anhydrous, powder, 99.99% trace rare earth metals basis | Sigma-Aldrich". www.sigmaaldrich.com. Retrieved 21 December 2016.
^ ^a ^b "13818-75-2 - Gadolinium(III) bromide, ultra dry, 99.99% (metals basis) - 43673 - Alfa Aesar". www.alfa.com. Retrieved 21 December 2016.
^ ^a ^b Georg Brauer (Hrsg.), unter Mitarbeit von Marianne Baudler u. a.: Handbuch der Präparativen Anorganischen Chemie. 3., umgearbeitete Auflage. Band I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6, S. 1077.