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Erbium Oxide

Short Description:

Erbium(III) Oxide, is synthesized from the lanthanide metal erbium. Erbium oxide is a light pink powder in appearance. It is insoluble in water, but soluble in mineral acids. Er2O3 is hygroscopic and will readily absorb moisture and CO2 from the atmosphere. It is a highly insoluble thermally stable Erbium source suitable for glass, optical, and ceramic applications. Erbium Oxide can be also used as a flammable neutron poison for nuclear fuel.


Product Detail

Erbium Oxide Properties

Synonym Erbium Oxide, Erbia, Erbium (III) oxide
CAS No. 12061-16-4
Chemical formula Er2O3
Molar mass 382.56g/mol
Appearance pink crystals
Density 8.64g/cm3
Melting point 2,344°C(4,251°F;2,617K)
Boiling point 3,290°C(5,950°F;3,560K)
Solubility in water insoluble in water
Magnetic susceptibility (χ) +73,920·10−6cm3/mol
High Purity Erbium oxide Specification

Particle Size(D50)  7.34 μm

Purity(Er2O3)  ≧99.99%

TREO(Total Rare Earth Oxides) 99%

REImpuritiesContents ppm Non-REEsImpurities ppm
La2O3 <1 Fe2O3 <8
CeO2 <1 SiO2 <20
Pr6O11 <1 CaO <20
Nd2O3 <1 CL¯ <200
Sm2O3 <1 L.O.I ≦1%
Eu2O3 <1
Gd2O3 <1
Tb4O7 <1
Dy2O3 <1
Ho2O3 <1
Tm2O3 <30
Yb2O3 <20
Lu2O3 <10
Y2O3 <20

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

What is Erbium oxide used for?

Er2O3 (Erbium (III) Oxide or Erbium Sesquioxide) is used in ceramics, glass, and solid stated lasers. Er2O3 is commonly used as an activator ion in making laser materials. Erbium oxide doped nanoparticle materials can be dispersed in glass or plastic for display purposes, such as display monitors. The photoluminescence property of erbium oxide nanoparticles on carbon nanotubes makes them useful in biomedical applications. For example, erbium oxide nanoparticles can be surface modified for distribution into aqueous and non-aqueous media for bioimaging. Erbium oxides are also used as gate dielectrics in semi conductor devices since it has a high dielectric constant (10–14) and a large band gap. Erbium is sometimes used as a burnable neutron poison for nuclear fuel.


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