Terbium(IV) oxide

Terbium(IV) oxide is an inorganic compound with a chemical formula TbO₂. It can be produced by oxidizing terbium(III) oxide by oxygen gas at 1000 atm and 300 °C.^[2]

Terbium(IV) oxide

Names
IUPAC name Terbium(IV) oxide
Other names Terbium dioxide
Identifiers
CAS Number	12036-15-6
3D model (JSmol)	Interactive image
PubChem CID	19784835
InChI InChI=1S/2O.Tb/q2*-2;+4 Key: PNHKKMHUOWDSEA-UHFFFAOYSA-N
SMILES [O-2].[O-2].[Tb+4]
Properties
Chemical formula	TbO2
Molar mass	190.925
Appearance	dark red solid[1][better source needed]
Related compounds
Related compounds	Terbium(III) oxide Terbium(III,IV) oxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Decomposition

Terbium(IV) oxide starts to decompose at 340 °C, producing Tb₅O₈ and oxygen:^[1]

5 TbO₂ → Tb₅O₈ + O₂