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Erbium Oxide

2026-04-08

Introduction to Erbium Oxide

Erbium oxide, also known as erbium trioxide, is a pink powder with the chemical formula Er₂O₃ and a molecular weight of 382.52.

 

Erbium Oxide Properties:

Product Name

Erbium Oxide

Molecular Formula

Er₂O₃

Molecular Weight

382.52 g/mol

Appearance

Pink Powder

Density

8.64 g/cm³

Melting Point

2400°C (Standard Grade)

Solubility

Insoluble in water; soluble in acids

Safety Description

S26, S36

Applications

Yttrium Iron Garnet (YIG) additive, nuclear reactor control rod material,

specialty optical glass manufacturing, infrared-absorbing glass, glass colorant

 

Erbium Oxide Applications:

Erbium oxide is mainly used as an additive for yttrium iron garnet and as a control material for nuclear reactors (flammable neutron poison). It is also used in the manufacture of special luminescent glass and glass that absorbs infrared radiation and as a glass coloring agent. In addition, it is also used as an activator for fluorescent powders and a catalyst for petrochemicals. In the glass industry, adding erbium oxide not only gives the glass a rose-red color but also effectively eliminates the yellow color caused by trivalent iron ions.

In the medical field, erbium lasers are used for non-invasive treatment in dermatology and dentistry. In the field of optical communication, it is a key material for erbium-doped fiber amplifiers. In the semiconductor industry, its high dielectric constant and wide bandgap characteristics make it suitable for use as a gate dielectric. Nano erbium oxide can also be used for biological imaging after modification.

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