Document:
Terbium Oxide (chemical formula: Tb₄O₇) is an inorganic rare earth compound appearing as a brown powder. It is essential in advanced materials and high-tech applications.
Density: 7.3 g/cm³
Melting Point: 2500°C
Boiling Point: 3760°C
Reduction: Converts to Tb₂O₃ under hydrogen reduction at 1800°C and 15 MPa.
Solubility: Insoluble in water; soluble in acids to form trivalent salts.
Properties: Volatilizes with steam, alkaline, toxic. Irritates eyes, respiratory tract, and skin. Absorbs CO₂ from air; reacts with inorganic acids to form water-soluble salts.
Terbium oxide is a versatile material used across multiple industries:
Phosphor Activator: Critical for long-afterglow phosphors in lighting and display technologies.
Crystal Growth: Essential for growing TGG (Terbium Gallium Garnet) and TSAG (Terbium Scandium Aluminum Garnet) crystals used in Faraday isolators and laser systems.
Scintillation Ceramics: Additive in special scintillation ceramics for radiation detection.
Terbium Metal Production: Raw material for producing metallic terbium used in magnets and alloys.
We offer high-purity Terbium Oxide in two grades. Click the links for detailed safety and technical data sheets.
| Product | Product Code | Safety Data Sheet (SDS) | Technical Data Sheet (TDS) |
|---|---|---|---|
| Terbium Oxide 99.99% | ET-Tb-02 | Terbium Oxide SDS (PDF) | Tb₄O₇ 99.99% TDS (PDF) |
| Terbium Oxide 99.999% | ET-Tb-03 | Terbium Oxide SDS (PDF) | Tb₄O₇ 99.999% TDS (PDF) |
*Note: 99.999% purity offers ultra-high purity for demanding applications.*
| Parameter | Details |
|---|---|
| Signal Word | N/A |
| Hazard Statements | N/A |
| Hazard Codes | N/A |
| Precautionary Statements | N/A |
| Flash Point | Not applicable |
| Risk Codes | N/A |
| Safety Statements | N/A |
| RTECS Number | N/A |
| Transport Information | NONH (not hazardous for transport) |
| WGK Germany | 3 (water hazard class) |
We provide flexible packaging to meet your needs:
Standard Packaging: 50 kg/drum, 500 kg/pallet, or 1 ton bags
Sample Packaging: 500 g/bag or 1 kg/bottle for R&D and testing
Terbium oxide is primarily produced via oxalate precipitation:
Dissolve terbium chloride or nitrate in water.
Adjust pH to ~2 with oxalic acid.
Add ammonia to precipitate terbium oxalate.
Heat and age the precipitate, then separate and wash.
Dry at 110°C.
Calcine at 900–1000°C to obtain final Tb₄O₇ powder.
This method ensures high purity and consistent quality.
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