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Terbium(III) oxide : ウィキペディア英語版
Terbium(III) oxide

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Terbium(III) oxide, also known as terbium sesquioxide, is a sesquioxide of the rare earth metal terbium, having chemical formula . It is a p-type semiconductor when doped with calcium, and may be prepared by the reduction of in hydrogen at 1300 °C for 24 hours.
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.〔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.〕
==References==



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