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Dysprosium Oxide CAS NO 37247-99-7
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CAS No.:37247-99-7
Grade:Pharmacy Grade
Content:99.9%
Brand:Customizable
Packaging:Customizable
Description
Dysprosium Oxide is a high-purity rare earth compound essential for advanced materials and electronics. This material is critical for applications requiring specific magnetic, optical, and thermal properties. It is primarily utilized by manufacturers in the permanent magnet, nuclear reactor control, and specialty glass industries.
Application
- Permanent Magnets: A key dopant in neodymium-iron-boron (NdFeB) magnets to improve coercivity and thermal stability for electric vehicles and wind turbines.
- Nuclear Industry: Used in control rods and shielding materials due to its high neutron absorption cross-section.
- Specialty Glass & Ceramics: Imparts specific optical properties and enhances the durability of laser host materials and other advanced ceramics.
- Phosphors & Lighting: Acts as an activator in phosphors for specialized lighting and display applications.
- Chemical Research: Serves as a catalyst or precursor in various chemical synthesis and material science research.
- Data Storage: A component in magneto-optical recording media.
Basic Information
| Product Name | Dysprosium Oxide |
| CAS No. | 37247-99-7 |
| Molecular Formula | Dy2O3 |
| Molecular Weight | 372.998 g/mol |
| Synonyms | Dysprosia; Di-Dysprosium Trioxide; Dysprosium(III) Oxide; Dysprosium Sesquioxide; Dy2O3; Rare Earth Oxide Dy2O3; Didysprosium Trioxide |
| EINECS | 253-433-0 |
Quality Control
Our Dysprosium Oxide is manufactured under stringent quality management systems. Each batch undergoes rigorous analysis to ensure it meets high-purity specifications, typically ranging from 99.9% to 99.999% (REO basis). A comprehensive Certificate of Analysis (COA) detailing purity, trace metal impurities, and physical characteristics is provided with every shipment to guarantee consistency and compliance with your technical requirements.
Storage
Preserve in a tightly closed container, protected from light. Due to its hygroscopic nature, the material should be stored in a cool, dry place, ideally under controlled humidity conditions. For long-term storage, a desiccated environment is recommended to prevent moisture absorption and caking.
Specification
| Item | Specification |
|---|---|
| Appearance | White to pale yellow powder |
| Assay (Dy2O3 on REO basis) | ≥ 99.9% |
| Purity (Dy/TREO) | ≥ 99.5% |
| Loss on Ignition (LOI) | ≤ 1.0% |
| Rare Earth Impurities | ≤ 0.1% |
| Non-Rare Earth Impurities (Fe, Ca, Si, etc.) | Contact for details |
| Particle Size (D50) | Customizable |
Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.
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Why choose US
Trusted Manufacturer
With our own production facilities, we ensure consistent quality, reliable supply, and full traceability.
Rigorous Quality Assurance
Each batch undergoes strict QC, accompanied by COA, MSDS, and full compliance with international standards.
Advanced R&D Expertise
Our in-house lab drives process innovation, new product development, and tailored synthesis solutions.






