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Give us a call +86 -755-25432352
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Email us info@urbanmines.com
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Come & visit us No. 11, Bld. C, Hengmingzhu Tech. Industrial Park, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China
Give us a call +86 -755-25432352
Email us info@urbanmines.com
Come & visit us No. 11, Bld. C, Hengmingzhu Tech. Industrial Park, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China
Erbium oxide (Er₂O₃) is a pink powdered rare earth oxide with stable chemical properties, excellent high-temperature resistance and thermal stability. Slightly hygroscopic, it should be stored in a sealed container. It is insoluble in water and slightly soluble in acids.
As a versatile rare earth functional material, erbium oxide plays an irreplaceable role in modern optoelectronic information, advanced manufacturing, environmental catalysis and other fields. It is widely used in optical fiber communication, laser devices, optical infrared materials, high-grade glass and ceramic coloring, up-conversion phosphors, special alloy modification and catalytic additives. It is a core rare earth raw material for optical communication, laser medicine, precision optics and advanced material manufacturing.
UrbanMines supplies custom-grade erbium oxide with typical purities of 99.9% (3N), 99.99% (4N) and higher grades. It features strict impurity control, excellent batch-to-batch consistency, and unique optical, luminescent and material-modifying properties to suit diverse applications.
Erbium Oxide (Er₂O₃) – Physicochemical Properties
| Chemical Formula: | Er₂O₃ |
| CAS Number: | 12061-16-4 |
| Appearance: | Pink powder |
| Purity Grades: | 3N (99.9%), 4N (99.99%), 5N (99.999%) |
| Density: | 8.64 g/cm³ |
| Melting Point: | 2344 °C |
| Solubility: | Insoluble in water; slightly soluble in acids |
| Stability: | Chemically stable in air, slightly hygroscopic; store sealed in a cool, dry place |
| Items | Specifications | Typical Analyses | Analytical Instruments | ||||
| Symbol | UMEO2N | UMEO2N5 | UMEO3N | UMEO3N5 | UMEO4N | ||
| REO % | ≥99 | ≥99 | ≥99 | ≥99 | ≥99.99 | ||
| Purity and relative RE impurities | |||||||
| Er₂O₃/REO % | ≥99.00 | ≥99.50 | ≥99.90 | ≥99.95 | ≥99.99 | ||
| Tb₄O₇/REO % | ≤0.001 | Content≤ 0.05 in total | Content≤ 0.1in total | Content≤ 0.5 in total | <0.0001 | ≤0.001 | ① |
| Dy₂O₃/REO % | ≤0.001 | <0.0001 | ≤0.001 | ① | |||
| Ho₂O₃/REO % | ≤0.001 | <0.0001 | ≤0.001 | ① | |||
| Tm₂O₃/REO % | ≤0.002 | 0.0025 | ≤0.002 | ① | |||
| Yb₂O₃/REO % | ≤0.003 | 0.0015 | ≤0.003 | ① | |||
| Y2O₃/REO % | ≤0.002 | 0.0014 | ≤0.002 | ① | |||
| Non-RE impurity | |||||||
| Fe₂O₃ % | ≤0.0005 | ≤0.001 | ≤0.001 | ≤0.005 | <0.0005 | ≤0.0005 | ② |
| SiO₂ % | ≤0.003 | ≤0.005 | ≤0.005 | ≤0.01 | <0.0015 | ≤0.003 | |
| CaO % | ≤0.0015 | ≤0.0015 | ≤0.02 | ≤0.05 | <0.002 | ≤0.0015 | ② |
| CuO % | ≤0.001 | ≤0.002 | ≤0.005 | ≤0.005 | ≤0.001 | ② | |
| CL- % | ≤0.02 | ≤0.02 | ≤0.03 | ≤0.03 | <0.005 | ≤0.02 | |
| Loss on Ignition (1000℃,1hour)% | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 | ||
Notes:
① ICP-AES - Inductively Coupled Plasma Atomic Emission Spectrometer
② PE-3100 - Atomic Absorption Spectrophotometer
What are the Applications & Specific Uses of Erbium Oxide?
1. Optical Fiber Communication
Erbium oxide is the core dopant for erbium-doped fiber (EDF). Leveraging its optical amplification at 1550 nm, it is used to manufacture erbium-doped fiber amplifiers (EDFA), supporting long-haul, high-capacity optical communication systems.
2. Laser Materials
Used to produce erbium-doped YAG laser crystals and erbium-doped glass lasers, emitting around 1.5 μm (eye-safe band). Widely applied in medical surgery (skin repair, dental treatment), aesthetics (spot removal, skin rejuvenation), scientific research and industrial marking.
3. Optical & Infrared Components
Used in infrared filters, anti-reflection coatings, night-vision optics and laser-protective glass. Utilizes its characteristic infrared absorption and transmission to enhance optical device performance and safety.
4. Glass & Ceramic Coloring
A premium rose/sakura-pink colorant for art glass, high-grade ceramic glazes and synthetic gemstones. Delivers stable, soft coloration with excellent heat resistance, unaffected by kiln atmosphere variations.
5. Luminescent Materials & Phosphors
Used in up-conversion phosphors that convert infrared light into visible light. Applied in anti-counterfeiting labels, optical displays and biological labeling; a key component of rare earth luminescent materials.
6. Special Alloys
Added to magnesium, aluminum and other high-performance alloys to significantly improve strength, heat resistance and corrosion resistance. Used in aerospace, automotive and other advanced engineering sectors.
7. Catalysis & Fine Chemicals
Serves as a promoter or additive for petroleum cracking, automotive exhaust purification and organic synthesis catalysts, enhancing activity and selectivity. Shows potential in green chemistry and environmental applications.
Storage, Transportation & Handling Precautions
Store powder sealed, cool, dry and away from light; keep relative humidity below 40% to avoid moisture and CO₂ absorption.
Wear a dust mask and goggles during handling to prevent inhalation.
Use airtight glass, ceramic or plastic-lined containers.
Avoid prolonged contact with reactive metals.
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