Bismuth Selenide | Bi2Se3 | CAS 12068-69-8


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Bismuth Selenide (Bi2Se3) is a semiconductor and a thermoelectric material. Heeger Materials offers over 100 high-purity products, including metals, metal oxides, and metal salts, with 99.999% purity or higher. We can provide the best Bismuth Selenide (Bi2Se3) with a purity of 99.99% and 99.999% in size of ingot, lump, and powder.

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Data sheet

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

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Bismuth Selenide (Bi2Se3) is a gray compound of bismuth and selenium also known as bismuth (III) selenide. It is a semiconductor and a thermoelectric material. High-purity and ultra-high-purity Bismuth Selenide (Bi2Se3) materials are crucial components for the research, development, and production of advanced technologies that require optimum properties, performance, and quality.

Bismuth Selenide | Bi2Se3 |CAS 12068-69-8

  • Chemical formula: Bi2Se3
  • Purity: 99.99%-99.999%
  • EINECS NO.: 235-104-7
  • UN NO.: UN3283
  • CAS: 12068-69-8
  • Molar mass:654.8 g/mol 
  • Appearance: Dull grey 
  • Density:6.82 g/cm3
  • Melting point:710 °C (1310 °F, 983 K)
  • Solubility in water: insoluble
  • Solubility: insoluble in organic solvents (soluble in strong acids)
  • Crystal structure: rhombohedral


  • It is used as thermoelectrics to convert waste heat into electricity or generate temperature gradients.
  • It is used in advanced photodetectors, magnetic devices, FETs, lasers, gas sensors, spintronics, and quantum computing devices.
  • It is also attractive to biomedicine due to its good bioactivity and biocompatibility.

Packing & Shipping

Bismuth Selenide (Bi2Se3) is carefully packaged in carton boxes with foam protection to minimize damage during storage and transportation and to preserve the quality of our products in their original condition. The vacuum packing is 1kg/bag, 25kg/barrel, or based on specific requirements.

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