Overview
Ultrafine ytterbium oxide powder (Yb2O3) is a rare-earth compound prized for its high melting point and optical properties. It is synthesized through calcination of ytterbium salts or hydrothermal methods, yielding particles typically <1µm. As a key material in advanced industries, it meets stringent purity standards (often ≥99.9%) for specialized applications. Ytterbium oxide belongs to the lanthanide series, exhibiting unique electronic configurations that enable uses in lasers and phosphors. Its ultrafine form enhances reactivity and sintering performance, making it indispensable in precision manufacturing.
Physical and Chemical Properties
Yb2O3 is chemically stable but hygroscopic, requiring dry storage to prevent clumping. Its cubic crystal structure contributes to high density (9.17 g/cm³) and thermal resistance, withstanding temperatures up to 2,355°C. The powder's refractive index (~1.95) and low neutron absorption cross-section suit optical and nuclear applications. Notably, it emits infrared radiation when doped, a property exploited in fiber lasers. Solubility is limited to acidic solutions, forming ytterbium salts. Particle size distribution (e.g., D50 <500nm) critically impacts performance in coatings and ceramics.
Main Applications
In optics, Yb2O3 serves as a coating material for lenses and mirrors due to its high reflectivity in the IR spectrum. It is also a gain medium in high-power fiber lasers, where its energy efficiency outperforms alternatives like neodymium. The ceramic industry utilizes it as a sintering aid to lower firing temperatures while enhancing density. Additionally, it acts as a dopant in phosphors for LEDs and X-ray imaging. Emerging uses include catalysts for organic synthesis and neutron absorbers in nuclear control rods.
Safety and Storage
While ytterbium oxide is non-toxic, its fine particulate form demands handling precautions. Use NIOSH-approved respirators (N95 or higher) and gloves to prevent inhalation or skin contact. Store in sealed containers with desiccants to minimize moisture absorption. Spills should be vacuumed, not swept, to avoid airborne dispersion. Disposal follows local regulations for rare-earth compounds. MSDS sheets typically classify it as a mild irritant (GHS Category 5).
B2B Procurement Guide
Procure Yb2O3 from suppliers with ISO 9001 certification and batch-specific analysis reports. Key specifications include purity (≥99.9% for most industrial uses), BET surface area (5-20 m²/g), and absence of heavy metal impurities. Bulk orders (25kg drums) commonly reduce costs by 15-30%. Request samples to verify particle morphology via SEM. For optical applications, prioritize vendors offering laser-grade material with traceability documentation.
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