Terbium (Tb): Magnetic Refrigeration Technology, Magneto-Optic Storage Material, High-Performance NdFeB Additive
Terbium is a silvery-white malleable metal with melting point 1356°C, boiling point 3230°C, density 8.22 g/cm³. Magnetic at room temperature. Naturally occurs with one stable isotope and 20 radioactive isotopes. Hexagonal crystal lattice. Soluble in dilute acids, reacts slowly with water. Highly reactive. Must be stored in inert gas or vacuum containers.
Applications
Product Series
|
Product |
Product Code |
Safety Data |
Technical Data |
|
Terbium 99.9% |
ET-TBM-01 |
Terbium.pdf | Terbium Metal 99.9.pdf |
|
Terbium 99.99% |
ET-TBM-02 |
Terbium Metal 99.99.pdf |
| Signal Word | Danger |
| Hazard Statements | H228 |
| Hazard Codes | N/A |
| Risk Codes | N/A |
| Safety Statements | N/A |
| RTECS Number | N/A |
| Transport Information | N/A |
| WGK Germany | 3 |
Packaging Specifications
Production Method
After separating terbium from other rare earths via ion exchange/solvent extraction, metallothermic reduction prepares metallic terbium. Unlike calcium reduction, lithium reduction occurs in gas phase. The lithium reduction reactor has two heating zones, combining reduction and distillation. Anhydrous TbCl₃ is placed in the upper titanium crucible (also serving as distillation chamber), with lithium metal in the lower crucible. The stainless steel vessel is evacuated to 7Pa before heating. At 1000°C, TbCl₃ vapor reacts with lithium vapor, depositing terbium particles in the lower crucible. Post-reaction, only the lower crucible is heated to distill LiCl upward. The 10-hour process requires 99.97% pure lithium and doubly distilled anhydrous TbCl₃.
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