Samarium(III) Oxide Powder (Sm₂O₃)
Introduction
Samarium(III) Oxide Powder (Sm₂O₃) is a rare-earth oxide widely used in electronics, ceramics, optics, and nuclear applications. With its distinctive pale yellow appearance and excellent chemical stability, Sm₂O₃ is a critical material for permanent magnets, catalysts, and specialty glasses.
Detailed Description
Samarium Oxide is a light yellow to pale cream-colored fine powder with a melting point of ~2,340 °C and a density of ~8.35 g/cm³. It is typically available in purities from 99.9% (3N) to 99.999% (5N), meeting both research and industrial requirements.
Key features include:
Magnetic contribution: Samarium is a key element in SmCo permanent magnets, known for high strength and thermal resistance.
Optical properties: Sm₂O₃ can be used in infrared-absorbing and UV-protective glasses.
Catalysis: Effective in chemical reactions, especially hydrogenation and dehydrogenation processes.
Stability: Insoluble in water, highly stable at high temperatures.
Applications
Samarium(III) Oxide Powder is widely applied in:
Magnet manufacturing: Raw material for SmCo permanent magnets.
Electronics: Used in thin films, capacitors, and semiconductors.
Optical glass & ceramics: Provides infrared absorption and coloration.
Catalysts: Applied in fuel cells, environmental catalysts, and organic synthesis.
Nuclear technology: Utilized as a neutron absorber in nuclear reactors.
Technical Parameters
| Parameter | Typical Value / Range | Importance |
|---|---|---|
| Purity | 99.9% – 99.999% | Ensures high performance in magnets and optics |
| Particle Size | 100 nm – 5 µm | Smaller particles improve sintering and uniformity |
| Appearance | Pale yellow powder | Characteristic color of samarium oxide |
| Melting Point | ~2,340 °C | Suitable for high-temperature applications |
| Density | ~8.35 g/cm³ | Important for ceramics and magnet raw materials |
Comparison with Related Materials
| Material | Key Advantage | Typical Application |
|---|---|---|
| Samarium Oxide (Sm₂O₃) | Magnetic, optical, catalytic use | Magnets, catalysts, glass |
| Neodymium Oxide (Nd₂O₃) | Strong magnetic properties | NdFeB magnets |
| Europium Oxide (Eu₂O₃) | Luminescent properties | Phosphors, displays |
FAQ
| Question | Answer |
|---|---|
| What color is Sm₂O₃ powder? | Pale yellow to cream-colored. |
| Can Sm₂O₃ be used for magnets? | Yes, it is a precursor for SmCo permanent magnets. |
| Is Sm₂O₃ stable in air? | Yes, it is stable and non-hygroscopic. |
| How is it packaged? | Vacuum-sealed in moisture-proof containers, bulk shipments in lined drums. |
| Which industries use Sm₂O₃ the most? | Magnetics, optics, ceramics, catalysts, and nuclear technology. |
Packaging
Samarium(III) Oxide Powder is securely packed in vacuum-sealed bottles or bags for laboratory use. Industrial quantities are shipped in moisture-proof drums with protective lining to prevent contamination.
Conclusion
Samarium(III) Oxide Powder (Sm₂O₃) is a multifunctional rare-earth material essential in permanent magnets, optics, electronics, and nuclear applications. With its high stability, unique optical properties, and magnetic significance, it supports both cutting-edge research and industrial production.
For detailed specifications and a quotation, please contact us at [sales@thinfilmmaterials.com].
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