• Baotou direct supplier rare earth oxide Tb2O3 terbium oxide

Terbium oxide, also known as terbium sesquioxide, is a sesquioxide of the rare earth metal terbium, having chemical formula Tb2O3. It is a p-type semiconductor when doped with calcium, and may be prepared by the reduction of Tb4O7 in hydrogen at 1300 °C for 24 hours. It is mainly used as an activator for luminescent materials, and also as an additive for NdFebB permanent magnetic materials.

It is a p-type semiconductor.

It is a basic oxide and easily dissolved to dilute acids, and then almost colourless terbium salt is formed.

Tb2O3 + 6 H+ → 2 Tb3+ + 3 H2O

The crystal structure is cubic and the lattice constant is a = 1057 pm.

Properties
Chemical formula Tb2O3
Molar mass 365.848 g/mo
Appearance white crystals
Density 7.91 g/cm3
Melting point 2,410 °C (4,370 °F; 2,680 K)
Magnetic susceptibility (χ) 0.07834 cm3/mol
Application Used as an activator for luminescent materials, and also as an additive for NdFebB permanent magnetic materials
Structure
Crystal structure Cubic, cI80
Space group Ia-3, No. 206

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