Terbium(III) bromide (TbBr3) is a crystalline chemical compound.

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

[6] 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.