Terbium(III) hydroxide

Terbium(III) hydroxide is an inorganic compound with chemical formula Tb(OH)₃.

Terbium(III) hydroxide

Identifiers
CAS Number	12054-65-8 Y
3D model (JSmol)	Interactive image
ChemSpider	9565078 Y
ECHA InfoCard	100.031.815
EC Number	235-010-6
PubChem CID	11390176
CompTox Dashboard (EPA)	DTXSID70923459
InChI InChI=1S/3H2O.Tb/h3*1H2;/q;;;+3/p-3 Y Key: HGBHINYCUZBWCK-UHFFFAOYSA-K Y
SMILES [Tb+3].[OH-].[OH-].[OH-]
Properties
Chemical formula	Tb(OH)3
Molar mass	209.949
Appearance	white solid[1]
Related compounds
Other anions	terbium oxide
Other cations	gadolinium(III) hydroxide dysprosium(III) hydroxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Chemical properties

Terbium(III) hydroxide reacts with acids and produces terbium(III) salts:

Tb(OH)₃ + 3 H⁺ → Tb³⁺ + 3 H₂O

Terbium(III) hydroxide decomposes to TbO(OH) at 340°C. Further decomposition at 500°C generates Tb₄O₇ and O₂.^[1]