Terbium physical and mechanical properties. Application.
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Technical characteristics of terbium
Rare metal is silvery-white from the group of heavy lanthanides. Atomic number 65 Obtained from a mixture of rare-earth elements by the metal-thermal method. In air under normal conditions, this metal is fairly stable, and in boiling water begins to form a hydroxide Tb (OH) 3. Easily soluble in mineral acids with the formation of salts.
| Chemical symbol | Tb |
| Atomic mass g / mol | 158,925 |
| Degree of oxidation | +3, +4 |
| Density [g / cm3] | 8.3 |
| Melting point t ° C | 1356 ° C |
| Boiling point t ° C | 3227 ° C |
| Heat of evaporation kJ / mol | 389 |
Application
Production of luminophores, lasers, magnetic and thermoelectric materials, semiconductors, magnetostrictive alloys. Fe-Tb alloy is the best magnetostrictive material, it is used for the production of powerful servomotors (for example, telescopes), for ultrasonic radiators with absolute sound wave power.
Storage
In closed warehouses or under a canopy, where adequate protection against mechanical and other damages is provided.
Delivery, price
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