Global Elements Solutions

Terbium Oxide (Tb4O7)

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Additional information

Item Number

OX65

Product Name

Terbium Oxide (Tb4O7)

CAS Number

12037-01-3

Appearance

Brown Powder

M. F.

Tb4O7

Purity

99%; 99.9%; 99.99% (REO)

Melting Point

2337℃

Solubleness

Insoluble in water

Molar mass

747.72 g/mol

Form*

P, ST

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Description:

Terbium (III, IV) Oxide, also known as tetraterbium heptaoxide (Tb₄O₇), is a relatively stable rare earth compound that can be stored with ease. It is one of the most important commercial terbium oxides, typically obtained by heating terbium oxalate.

Key Features

  • Stable and easy to handle
  • High purity available upon request
  • Essential in both traditional display and advanced energy technologies

Applications:

  • Phosphors: Tb₄O₇ is a key activator for green phosphors, widely used in color television tubes and modern display technologies.
  • Solid-State Devices: Serves as a dopant in crystalline materials, enhancing the performance of solid-state devices.
  • Laser Materials: Applied in the production of specialized laser systems.
  • Fuel Cells: Acts as a dopant in fuel cell materials, improving their efficiency and durability.
  • Intermediate Compound: Used in the preparation of other terbium-based compounds for industrial and research purposes.

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