Terbium Oxide
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Introduction
Formula: Tb4O7
CAS No.: 12037-01-3
Molecular Weight: 747.69
Density: 7.3 g/cm3
Melting point: 1356°C
Appearance: Brown powder
Solubility: Insoluble in water, moderately soluble in strong mineral acids
Stability: Slightly hygroscopic
Multilingual: TerbiumOxid, Oxyde De Terbium, Oxido Del Terbio
Terbium Oxide, also called Terbia, has important role as an activator for green phosphors used in color TV tubes. Meanwhile Terbium Oxide is also used in special lasers and as a dopant in solid-state devices. It is also frequently used as a dopant for crystalline solid-state devices and fuel cell materials. Terbium Oxide is one of the chief commercial Terbium compounds. Produced by heating the metal Oxalate,Terbium Oxide is then used in the preparation of other Terbium compounds.
Certificate of Analysis
| Product Code | 6590 | 6591 | 6593 | 6595 | 6597 |
| Grade | 99.9999% | 99.999% | 99.99% | 99.9% | 99% |
| CHEMICAL COMPOSITION | |||||
| 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 Gd2O3/TREO Dy2O3/TREO Ho2O3/TREO Er2O3/TREO Tm2O3/TREO Yb2O3/TREO Lu2O3/TREO Y2O3/TREO | 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 | 1 5 5 1 1 5 1 1 3 | 10 20 20 10 10 10 10 10 20 | 0.01 0.1 0.15 0.02 0.01 | 0.01 0.5 0.3 0.05 0.03 |
| Non-Rare Earth Impurities | ppm max. | ppm max. | ppm max. | % max. | % max. |
| Fe2O3 SiO2 CaO CuO NiO ZnO PbO | 2 10 10 | 2 30 10 1 1 1 1 | 5 50 50 3 3 3 3 | 0.001 0.01 0.01 |