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Terbium(III,IV) Oxide

Terbium(III,IV) Oxide/Tetraterbium Heptaoxide/Tb4O7 Powder 12037-01-3

Terbium(III,IV) Oxide, occasionally called Tetraterbium Heptaoxide, has the formula Tb4O7, is a highly insoluble thermally stable Terbium source.Tb4O7 is one of the main commercial terbium compounds, and the only such product containing at least some Tb(IV) (terbium in the +4 oxidation state), along with the more stable Tb(III). It is produced by heating the metal oxalate, and it is used in the preparation of other terbium compounds. Terbium forms three other major oxides: Tb2O3, TbO2, and Tb6O11.


Terbium(III,IV) Oxide Properties

CAS No. 12037-01-3
Chemical formula Tb4O7
Molar mass 747.6972 g/mol
Appearance Dark brown-black hygroscopic solid.
Density 7.3 g/cm3
Melting point Decomposes to Tb2O3
Solubility in water Insoluble

 

High Purity Terbium Oxide Specification

Particle Size(D50) 4.27 μm
Purity((Tb4O7 99.995%
TREO(Total Rare Earth Oxides) 99%

 

RE Impurities Contents ppm Non-REEs Impurities ppm
La2O3 3 Fe2O3 <2
CeO2 4 SiO2 <30
Pr6O11 <1 CaO <10
Nd2O3 <1 CL¯ <30
Sm2O3 3 L.O.I ≤1%
Eu2O3 <1
Gd2O3 7
Dy2O3 8
Ho2O3 10
Er2O3 5
Tm2O3 <1
Yb2O3 2
Lu2O3 <1
Y2O3 <1

【Packaging】25KG/bag Requirements:moisture proof, dust-free, dry, ventilate and clean.

 

What is Terbium(III,IV) Oxide used for?

Terbium(III,IV) Oxide (Tb₄O₇) is a critical rare-earth compound with unique optical, catalytic, and magnetic properties, enabling its use across advanced technologies. Key applications include:

1. Advanced Materials Synthesis

- Precursor Material: Serves as a primary precursor for synthesizing high-purity terbium compounds, including terbium salts, alloys, and nanomaterials.  

- Composite Catalysts: Combined with cerium oxide (CeO₂) in catalytic converters for automobiles, effectively reducing harmful emissions (e.g., NOₓ, CO) in exhaust systems.  

- Nanoparticles: Engineered Tb₄O₇ nanoparticles are utilized as fluorescent probes or sensors in analytical chemistry, particularly for detecting trace drugs or contaminants in food and environmental samples.

2. Optoelectronics & Photonics 

- Phosphor Activator: Acts as a green phosphor activator in lighting and display technologies, such as LEDs, fluorescent lamps, and cathode-ray tubes, ensuring bright and stable color emission.  

- Magneto-Optical Devices: Integrated into magneto-optical recording media (e.g., data storage disks) and specialized glasses for optical isolators, modulators, and laser systems, leveraging its Faraday effect to control light polarization.  

- Solid-State Devices: Functions as a dopant in semiconductors and solid-state electrolytes to enhance conductivity and stability in electronic components and fuel cells.  

- Laser Technology: Employed in high-performance solid-state lasers for medical, industrial, and research applications due to its efficient light amplification properties.

3. Energy & Environmental Technologies  

- Fuel Cells: Enhances oxygen ion conductivity and durability in solid oxide fuel cell (SOFC) electrodes and electrolytes, improving energy conversion efficiency.  

- Redox Catalysis: Serves as a catalyst in oxygen-dependent industrial processes, such as methane oxidation and water splitting, due to its high redox activity and thermal stability.  

4. Analytical Chemistry 

- Sensing & Detection: Tb₄O₇ nanoparticles enable sensitive fluorometric or colorimetric detection of pharmaceuticals, pesticides, and biological molecules in food safety and environmental monitoring.  

Key Advantages:  

- Multifunctional Properties: Combines luminescence, magnetism, and catalytic activity for cross-industry versatility.  

- High Thermal Stability: Maintains performance in extreme conditions, ideal for catalysis and energy applications.  

- Tunable Nanostructures: Nanoparticles can be tailored for targeted sensing, imaging, or catalytic functions.  

Tb₄O₇ is indispensable in cutting-edge fields such as clean energy, optoelectronics, and nanotechnology, driving innovations in sustainability and advanced manufacturing.  

This structure emphasizes clarity, technical precision, and alignment with modern industrial and research trends.

 

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Terbium Oxide Terbium(III,IV) Oxide/Tetraterbium Heptaoxide/Tb4O7 Powder 12037-01-3
Terbium(III,IV) Oxide, occasionally called Tetraterbium Heptaoxide, has the formula Tb4O7, is a highly insoluble thermally stable Terbium source.Tb4O7 is one of the main commercial terbium compounds, and the only such product containing at least some Tb(IV) (terbium in the +4 oxidation state), along with the more stable Tb(III). It is produced by heating the metal oxalate, and it is used in the preparation of other terbium compounds. Terbium forms three other major oxides: Tb2O3, TbO2, and Tb6O11.
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