Europium(III) bromide

Europium(III) bromide (or europium tribromide) is a crystalline compound, a salt, made of one europium and three bromine atoms.^[2] Europium tribromide is a grey powder at room temperature.^[2] It is odorless.^[5] Europium tribromide is hygroscopic.^[6]

Europium(III) bromide

Names
IUPAC name Tribromoeuropium
Identifiers
CAS Number	13759-88-1
3D model (JSmol)	Interactive image
ChemSpider	75529
ECHA InfoCard	100.033.939
EC Number	237-349-5
PubChem CID	83707
CompTox Dashboard (EPA)	DTXSID9065609
InChI InChI=1S/3BrH.Eu/h3*1H;/q;;;+2/p-3 Key: GJTREPCQBHSSHK-UHFFFAOYSA-K
SMILES [Eu+2].[Br-].[Br-].[Br-]
Properties
Chemical formula	EuBr3
Molar mass	391.68 g[1]
Melting point	702 °C (1,296 °F; 975 K)[1]
Solubility in water	Will dissolve[2]
Thermochemistry
Std molar entropy (S⦵298)	50.7 ± 3[3]
Std enthalpy of formation (ΔfH⦵298)	−186.1 ± 3[3]
Gibbs free energy (ΔfG⦵)	−179.3 ± 3[3]
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335[4]
Precautionary statements	P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P362, P403+P233[4]
NFPA 704 (fire diamond)	0 1 1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Reactions

When vaporized, europium(III) bromide reacts by the equation:

• 2 EuBr₃ → 2 Eu + 3 Br₂^[3][7]

Europium(III) bromide is also created through the equations:

• 4 EuBr₂ + 4 HBr → 4 EuBr₃ + 2 H₂^[7]