Terbium(IV) oxide

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[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

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]

Decomposition

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

5 TbO₂ → Tb₅O₈ + O₂

^ ^a ^b 无机化学丛书.第七卷钪稀土元素. 科学出版社. 1.3.4 氧化态+4的化合物. P_193~195
^ Adachi, Gin-ya; Imanaka, Nobuhito (1998). "The Binary Rare Earth Oxides". Chemical Reviews. 98 (4): 1479–1514. doi:10.1021/cr940055h. ISSN 0009-2665. PMID 11848940.