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Europium Oxide

2026-04-08

Introduction to Europium Oxide

Europium oxide, with the chemical formula Eu₂O₃ and also known as europium sesquioxide, is a white powder with a slight rose-red tint. It has a density of 7.42 and a melting point of approximately 2350°C. It is insoluble in water and alkaline solutions but soluble in inorganic acids and is stable in both dry and humid air. It is typically extracted and prepared from rare earth chloride solutions obtained by processing monazite or mixed rare earth ores using solvent extraction.

 

Europium Oxide Properties:

Product Name

Europium Oxide; Europia; Europium(III) Oxide; Europium Sesquioxide

Molecular Weight

351.93

Melting Point

2350 °C

Boiling Point

3790 °C

Density

7.42 g/cm³

Water Solubility

Insoluble in water

Appearance

White powder with a slight rose-red tint

Applications

Raw material for phosphors, manufacturing colored lenses and optical filters, colorant in glass industry, 

neutron absorber in nuclear industry, cell imaging in biomedical research

Safety Statements

S26, S36

 

Europium Oxide Applications:

  • Europium oxide, as a fluorescent powder raw material, is widely used in fields such as color cathode ray tubes, color TV picture tubes, computer displays, tricolor fluorescent lamps, and new long-afterglow displays. It is also a raw material for stimulated emission fluorescent powder in new X-ray medical diagnostic systems.
  • Europium oxide is used as an optical material for manufacturing colored lenses and optical filters. As a coloring agent in the glass industry, it can make glass appear orange-red and is used in the production of radiation-resistant glass. In addition, it can also be used as an additive for quartz optical fibers.
  • Europium oxide is used in the production of dyes, rubber vulcanization accelerators, drugs, pesticide fungicides, amino resins, ethylenediamine urea formaldehyde resins, metal chelating agents (EDTA), etc.
  • Europium oxide is used as a neutron absorber and is an important candidate material for control rods, shielding materials, and structural materials in atomic reactors.

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