The Terbium(III) oxide, with the CAS registry number 12036-41-8, is also known as Terbium sesquioxide. It belongs to the product categories of Catalysis and Inorganic Chemistry; Chemical Synthesis; Oxides; Terbium; TerbiumMetal and Ceramic Science. Its EINECS registry number is 234-849-5. This chemical's molecular formula is O₃Tb₂ and molecular weight is 365.85. What's more, both its IUPAC name and systematic name are the same which is called Oxygen(2-); terbium(3+). Terbium(III) oxide 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 a p-type semiconductor.

Physical properties about Terbium(III) oxide are: (1)#H bond acceptors: 1; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 0 Å²; (5)Density: 7.9 g cm^-3; (6)Melting point: 2410 °C.

Uses of Terbium oxide: (1) it is used as phosphor and X-ray fluorescent screen; (2) 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

When you are dealing with this chemical, you should be very careful. This chemical is inflammation to the skin, eyes and respiratory system or other mucous membranes. Therefore, you should wear suitable protective clothing. In case of contacting with eyes, you should rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1) SMILES: [Tb+3].[Tb+3].[O-2].[O-2].[O-2]
(2) InChI: InChI=1S/3O.2Tb/q3*-2;2*+3
(3) InChIKey: SCRZPWWVSXWCMC-UHFFFAOYSA-N