Product Properties
Product: Terbium Oxide
Purity:99.999%(5N), 99.99%(4N),99.9%(3N) (Tb4O7/REO)
Formula: Tb4O7
CAS No.: 12037-01-3
Molecular Weight: 747.69
Density: 7.3 g/cm3
Melting point: 1356°C
Appearance: Deep Brown powder
Specification of Terbium Oxide
| Products Name | Terbium Oxide | ||||
| Tb4O7/TREO (% min.) | 99.9999 | 99.999 | 99.99 | 99.9 | 99 |
| TREO (% min.) | 99.5 | 99 | 99 | 99 | 99 |
| Loss On Ignition (% max.) | 0.5 | 0.5 | 0.5 | 1 | 1 |
| Rare Earth Impurities | ppm max. | ppm max. | ppm max. | % max. | % max. |
| Eu2O3/TREO | 0.1 | 1 | 10 | 0.01 | 0.06 |
| Gd2O3/TREO | 0.1 | 5 | 20 | 0.13 | 0.5 |
| Dy2O3/TREO | 0.1 | 5 | 20 | 0.15 | 0.3 |
| Ho2O3/TREO | 0.1 | 1 | 10 | 0.02 | 0.05 |
| Er2O3/TREO | 0.1 | 1 | 10 | 0.012 | 0.03 |
| Tm2O3/TREO | 0.1 | 5 | 10 | ||
| Yb2O3/TREO | 0.1 | 1 | 10 | ||
| Lu2O3/TREO | 0.1 | 1 | 10 | ||
| Y2O3/TREO | 0.1 | 3 | 20 | ||
| Non-Rare Earth Impurities | ppm max. | ppm max. | ppm max. | % max. | % max. |
| Fe2O3 | 2 | 2 | 5 | 0.001 | |
| SiO2 | 10 | 30 | 50 | 0.011 | |
| CaO | 10 | 10 | 50 | 0.04 | |
| CuO | 1 | 3 | |||
| NiO | 1 | 3 | |||
| ZnO | 1 | 3 | |||
| PbO | 1 | 3 | |||
Application of Terbium Oxide
Electronics and Semiconductors: In the electronics industry, Terbium Oxide is used in the manufacture of semiconductors. It serves as a dopant in various semiconductor materials to modify their electrical properties, improving efficiency and performance in devices such as transistors and diodes.
Magneto-optical Materials: Tb2O3 is utilized in the production of magneto-optical materials, which are critical components in the development of magneto-optical storage media and devices. These materials can change their optical properties in the presence of a magnetic field, enabling their use in advanced data storage technologies and optical communication systems.
Ceramics and Glass: Terbium Oxide is added to ceramics and glass to improve their mechanical and thermal properties. It can also impart luminescent properties to these materials, making them suitable for specialized applications such as bioactive glasses and laser materials.
Catalysis: Similar to other rare earth oxides, Terbium Oxide can act as a catalyst or catalyst support in various chemical reactions, including organic synthesis and automotive exhaust treatment. Its catalytic properties are attributed to its ability to provide a large surface area and active sites for chemical reactions.