Terbium(III) oxide
From Infogalactic: the planetary knowledge core
Names | |
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IUPAC name
terbium(III) oxide
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Other names
terbium trioxide, terbia, terbium sesquioxide
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Identifiers | |
12036-41-8 | |
EC Number | 234-849-5 |
Jmol 3D model | Interactive image |
PubChem | 159410 |
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Properties | |
O3Tb2 | |
Molar mass | 365.85 g·mol−1 |
Appearance | white crystals |
Density | 7.91 g/cm3 |
Melting point | 2,410 °C (4,370 °F; 2,680 K) |
0.07834 cm3/mol | |
Structure | |
Cubic, cI80 | |
Ia-3, No. 206[1] | |
Vapor pressure | {{{value}}} |
Related compounds | |
Other anions
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Terbium(III) chloride |
Other cations
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Gadolinium(III) oxide Dysprosium(III) oxide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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verify (what is ?) | |
Infobox references | |
Terbium(III) oxide, also known as terbium sesquioxide, is a sesquioxide of the rare earth metal terbium, having chemical formula Tb
2O
3. It is a p-type semiconductor when doped with calcium,[2] and may be prepared by the reduction of Tb
4O
7 in hydrogen at 1300 °C for 24 hours.[3]
It is a p-type semiconductor.[4]
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.[5]
References
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- ↑ N. C. Baenzinger, H. A. Eick, H. S. Schuldt, L. Eyring: Terbium Oxides. III. X-Ray Diffraction Studies of Several Stable Phases. In: Journal of the American Chemical Society, 1961, 83, 10, S. 2219-23.
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