Terbium(III) bromide

Terbium(III) bromide (TbBr₃) is a crystalline chemical compound.^[5]

Terbium(III) bromide

Terbium(III) bromide
Names
Other names terbium tribromide
Identifiers
CAS Number	14456-47-4 Y
3D model (JSmol)	Interactive image
ECHA InfoCard	100.034.932
EC Number	238-442-3
PubChem CID	84452
CompTox Dashboard (EPA)	DTXSID60932333
InChI InChI=1S/3BrH.Tb/h3*1H;/q;;;+3/p-3
SMILES [Br-].[Br-].[Br-].[Tb+3]
Properties
Chemical formula	TbBr3
Molar mass	398.637 g/mol
Appearance	white powder (hexahydrate)[1]
Density	4.62 g/cm3[2]
Melting point	827[3] °C (1,521 °F; 1,100 K)
Boiling point	1,490[4] °C (2,710 °F; 1,760 K)
Solubility in water	soluble[4]
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Production and properties

Terbiun(III) bromide can be produced by heating terbium metal or terbium(III) oxide with ammonium bromide.^[6]

Tb₂O₃ + 6 NH₄Br → 2 TbBr₃ + 6 NH₃ + 3 H₂O

A solution of terbium(III) bromide can crystallize a hexahydrate. When heating the hexahydrate, it will dehydrate and produce some terbium oxybromide (TbOBr).^[7]

Terbium(III) bromide is a white solid that is soluble in water.^[4] Its crystal structure is the same as bismuth iodide.^[8]