| M Formula: | Tb |
| Properties: | |
| Metallic luster. D 8.332, mp 1356C, bp 2800C. Reacts slowly with water; soluble in dilute acids. Salts are colorless, highly reactive, handled in inert atmosphere or vacuum. | |
| Source: | |
| See Rare Earth. | |
| Derivation: | |
| Reduction of fluoride with calcium. | |
| Grade: | |
| Regular, 99.9+% purity (ingots, lumps), single crystals. | |
| Use: | |
| Phosphor activator, dope for solid-state devices. | |