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Bismuth Trioxide Powder | Bi2O3


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Bismuth oxide's main applications include electronic ceramic powder materials, electrolyte materials, photoelectric materials, high-temperature superconducting materials, and catalysts. HM provides Bismuth Trioxide(Bi2O3) with the purity of 99.95%, 99.999%,99.9999%, and 99.99995% in size of ingot, lump, and powder.

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Data sheet

Purity99.99%-99.999% (4N-5N)
ProductBismuth trioxide

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Bismuth (III) oxide powder is an important compound of Bismuth, Bismuth oxide has two kinds of crystal structure: Alpha type and Beta type. Compared with beta Bismuth oxide, alpha Bismuth oxide is more stable in high temperatures and has more common use of electronic materials, thermistor, glass coloring, varistor, surge arresters, CRT, fireproof paper, nuclear reactor fuel, electronic, etc.

Bismuth(III) oxide is perhaps the most industrially important compound of bismuth. It is also a common starting point for bismuth chemistry. It is found naturally as the mineral bismite (monoclinic) and sphaerobismoite (tetragonal, much rarer), but it is usually obtained as a by-product of the smelting of copper and lead ores. Dibismuth trioxide is commonly used to produce the "Dragon's eggs" effect in fireworks, as a replacement for red lead.

  • Molecular Formula: Bi2O3
  • CAS No.: 12048-50-9
  • EINECS No.: 215-134-4
  • Purity: 99.99%
  • Molar mass: 465.96 g/mol
  • Appearance: yellow crystals or powder
  • Density: 8.90 g/cm3, solid
  • Melting point: 817 °C (1,503 °F; 1,090 K)
  • Boiling point: 1,890 °C (3,430 °F; 2,160 K)
  • Solubility in water: insoluble
  • Solubility: soluble in acids
  • Magnetic susceptibility (χ): -83.0·10−6 cm3/mol
  • Crystal structure: monoclinic, mP20


  • Bismuth Trioxide (Bi2O3) Pieces
  • Bismuth Trioxide (Bi2O3) Granules
  • Bismuth Trioxide (Bi2O3) Powder
  • Bismuth Trioxide (Bi2O3) Sputtering Target


For the preparation of bismuth salt; used as electronic ceramic powder material, electrolyte material, photoelectric material, high-temperature superconductivity material, and catalyst. Bismuth oxide is an important additive in electronic ceramic powder materials, purity is generally above 99.15%, mainly applied to zinc oxide voltage sensitizer, ceramic capacitor, ferroxidase magnetic materials; and glaze rubber mixture, medicine, red glass compound, etc.


Keep the reservoir sealed and stored in a cool, dry place to ensure good ventilation or exhaust in the workshop.

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