· CAS:7440-27-9
· Molecular Formula: Tb
· Purity: 99.99%
· EINECS No.:231-137-6
Package Class:Vacuum Bag or with argon protection sealed
High Purity Terbium Metal (Tb)
Characteristic
Terbium is a chemical element with the symbol Tb and atomic number 65. It is a silvery-white, rare earth metal that is malleable, ductile, and soft enough to be cut with a knife. Terbium is highly reactive. It should be stored in a container filled with inert gas or a vacuum container.
Features： Lump
Melting point： 1629 K (1356 °C, 2473 °F)
Boiling point： 3396 K (3123 °C, 5653 °F)
Density (near r.t.)： 8.23 g/cm3
when liquid (at m.p.)： 7.65 g/cm3
Heat of fusion： 10.15 kJ/mol
Heat of vaporization： 391 kJ/mol
Molar heat capacity： 28.91 J/(mol·K)
Chemical Composition
Rare Earth Impurity(≤) | Tb/RE | ≥99.99% |
Item | La/RE | Ce/RE | Pr/RE | Nd/RE | Sm/RE | Eu/RE | Gd/RE |
Content(μm/g) | 1.40 | 1.00 | 1.30 | 4.70 | 1.50 | 1.10 | 19.20 |
Item | Dy/RE | Ho/RE | Er/RE | Tm/RE | Yb/RE | Lu/RE | Y/RE |
Content(μm/g) | 27.10 | 1.70 | 1.90 | 5.10 | 2.00 | 5.70 | 6.90 |
Non-Rare Earth Impurity(≤) | RE | ≥99.5% |
Item | Al | Fe | Ca | Si | Mg | C | O |
Content(μm/g) | 15.00 | 140.00 | 61.00 | 32.00 | 29.00 | 85.00 | 210.00 |
Application
Terbium Metal is the important additive for NdFeB permanent magnets to raise the Curie temperature and improve temperature coefficiency.
Terbium is primarily used in phosphors, particularly in fluorescent lamps and as the high intensity green emitter used in projection televisions.
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