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Europium Oxide (Eu2O3)

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Additional information

Item Number

OX63

Product Name

Europium Oxide (Eu2O3)

CAS Number

1308-96-9

M. F.

Eu2O3

Purity

99.9%; 99.99% (REO)

Form*

P, ST

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Description:

Europium Oxide (Eu₂O₃), also known as europium(III) oxide, is a white to pale pink powder composed of europium in its +3 oxidation state. It is the most stable oxide of europium and is widely used due to its luminescent properties.

  • Chemical Formula: Eu₂O₃
  • Molar Mass: 351.926 g/mol
  • Melting Point: ~2,350°C (4,262°F)
  • Density: 7.42 g/cm³
  • Solubility: Insoluble in water, soluble in strong acids

Applications:

Phosphors for Displays & Lighting

  • CRT TVs & Fluorescent Lamps:

    • Acts as a red phosphor when doped into yttrium oxide (Y₂O₃:Eu³⁺), used in older cathode-ray tube (CRT) televisions and trichromatic fluorescent lamps.

  • LEDs & Plasma Displays:

    • Essential for red emission in white LEDs and plasma display panels (PDPs).

  • X-ray Imaging:

    • Used in scintillator materials for medical and security X-ray detectors.

 Anti-Counterfeiting & Security Inks

  • Incorporated into security tags, banknotes (e.g., Euro currency), and certificates due to its strong red fluorescence under UV light.

Glass & Ceramic Coloring

  • Used as a dopant in glass and ceramics to produce red and pink hues.

  • Enhances UV absorption in sunglasses and protective lenses.

Nuclear Industry

  • Neutron Absorption:

    • Used in control rods for nuclear reactors due to europium’s high neutron capture cross-section.

  • Radiation Shielding:

    • Added to specialized glasses and materials for radiation protection.

Biomedical & Chemical Research

  • Fluorescent Labeling:

    • Eu₂O₃ nanoparticles are used in bioimaging, immunoassays, and DNA detection due to their stable luminescence.

  • Catalysis:

    • Investigated for use in hydrogenation and oxidation reactions.

Lasers & Optoelectronic Devices

  • Laser Crystals:

    • Doped into materials like YAG (Yttrium Aluminum Garnet) for solid-state lasers.

  • Quantum Memory Storage:

    • Studied for optical data storage and quantum computing applications.

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