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Dysprosium Oxide

As one of the rare earth oxide families, Dysprosium Oxide or dysprosia with chemical composition Dy2O3, is a sesquioxide compound of the rare earth metal dysprosium, and also a highly insoluble thermally stable Dysprosium source. It is a pastel yellowish-greenish, slightly hygroscopic powder, which has specialized uses in ceramics, glass, phosphors, lasers. 
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Dysprosium Oxide Properties

CAS No. 1308-87-8
Chemical formula Dy2O3
Molar mass 372.998 g/mol
Appearance pastel yellowish-greenish powder.
Density 7.80 g/cm3
Melting point 2,408 °C (4,366 °F; 2,681 K)[1]
Solubility in water Negligible


High Purity Dysprosium Oxide Specification

Particle Size(D50) 2.84 μm
Purity((Dy2O3) ≧99.9%
TREO(Total Rare Earth Oxides) 99.64%
RE Impurities Contents ppm Non-REEs Impurities ppm
La2O3 <1 Fe2O3 6.2
CeO2 5 SiO2 23.97
Pr6O11 <1 CaO 33.85
Nd2O3 7 PbO Nd
Sm2O3 <1 CL¯ 29.14
Eu2O3 <1 L.O.I 0.25%
Gd2O3 14    
Tb4O7 41    
Ho2O3 308    
Er2O3 <1    
Tm2O3 <1    
Yb2O3 1    
Lu2O3 <1    
Y2O3 22  

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


What is Dysprosium Oxide used for?

Dy2O3 (dysprosium oxide) is used in ceramics, glass, phosphors, lasers and dysprosium halide lamps. Dy2O3 is commonly used as an additive in making optical materials, catalysis, magneto-optical recording materials, materials with large magnetostriction, measurement of neutron energy-spectrum, nuclear reaction control rods, neutron absorbents, glass additives, and rare earth permanent magnets. It is also used as a dopant in fluorescent, optical and laser-based devices, dielectric multilayer ceramic capacitors (MLCC), high efficiency phosphors, and catalysis. The paramagnetic nature of Dy2O3 is also utilized in magnetic resonance (MR) and optical imaging agents. In addition to these applications, dysprosium oxide nanoparticles have recently been considered for biomedical applications such as cancer research, new drug screening, and drug delivery.

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