Terbium Oxide (Tb4O7)-Powder

Characteristic

 

Terbium(III,IV) oxide, occasionally called tetraterbium heptaoxide, has the formula Tb₄O₇, though some texts refer to it as TbO_1.75. There is some debate as to whether it is a discrete compound, or simply one phase in an interstitial oxide system.

Chemical formula：Tb₄O₇

Molar mass： 747.6972 g/mol

Appearance： Dark brown-black

hygroscopic： solid.

Density： 7.3 g/cm³

Melting point： Decomposes to Tb₂O₃

Solubility in water：Insoluble

 

Application

 

It acts as a precursor for the preparation of other terbium compounds. It is used as a redox catalyst in reactions involving oxygen. At high temperatures, it can liberate oxygen. It finds applications in the manufacture of glass, optic and ceramic. Nanoparticles of terbium oxide are used as analytical reagents for the determination of drugs in food.