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Product Code M2407A1-50g
Price £138 ex. VAT

Bismuth Oxide (Bi2O3) Nanopowder/Nanoparticles, ~ 130 nm, >99.99% purity

High purity bismuth oxide (Bi2O3) powder for applications in sensors, optical coatings, and anode materials for LIBs

Technical Data | MSDS |Literature and Reviews

Bismuth oxide, CAS number 1304-76-3, has five polymorph modifications, known as α-, β-, γ-, δ-, and ε-Bi2O3. The monoclinic form α phase of ambient temperature and the δ phase of high temperature are both structurally stable. At a temperature higher than 710 °C, α phase is converted into the cubic δ phase that has a defective structure with random oxygen vacancies. The others are high-temperature metastable phases. Each polymorph possesses distinct crystalline structures and physical properties. γ-Bi2O3 phase, having the sillenite structure, is optically active in electro-optic devices. At 300 K, the band gap of monoclinic α-Bi2O3 is equal to 2.85 eV, while that of tetragonal β-phase is 2.58 eV.

High Purity High purity bismuth oxide (Bi2O3)

High Purity

High purity bismuth oxide (Bi2O3) > 99.99% powder

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Low price 1304-76-3

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Low price bismuth oxide (Bi2O3)

versatile use of 1304-76-3


Applications in sensors, optical coatings, and anode materials for LIBs

Bismuth oxide shows great potential as anode materials for lithium-ion batteries (LIBs), owing to its high theoretical capacity of 690 mA h g−1. Furthermore, CQD−Bi2O3 composite exhibited good electrochemical activity and delivered a discharge capacity as high as 1500 mA h g−1 at 0.2 C rate. The supercapacitor properties of the CQD−Bi2O3 composite electrode revealed good reversibility and a high specific capacity of 343 C g−1 at 0.5 A g−1 in 3 M KOH. The asymmetric device using the CQD−Bi2O3  and reduced graphene oxide as the binary anode materials delivered a maximum energy density of 88 Wh kg−1 at a power density of 2799 W kg−1, while the power density reached a highest value of 8400 W kg−1 at the energy density of 32 Wh kg−1.

Technical Data

CAS Number 1304-76-3
Chemical Formula Bi2O3
Molecular Weight 465.96 g/mol
Chemical Name Bismuth oxide
Synonyms Bismuth Trioxide / Bismuth (III) Oxide, Bismite
Classification / Family 2D semiconducting materials, nanomaterials, Solid lighting, metal oxides
Colour Off-white powder

Bismuth Oxide (Bi2O3) Nanopowder

Product Code M2407A1
Average Particle Size (APS) ~ 130 nm
Specific Surface Area (SSA) 4.0 – 6.0 m2/g
Melting Point 817 °C (lit.)
Density 8.9 g/cm³
Morphology Spherical
Purity  > 99.99%

Pricing Table

Product Code Weight Price
M2407A1 50 g £138
M2407A1 100 g £225
M2407A1 100 g £450

*For larger orders please email us to discuss prices

MSDS Documents

Bismuth Oxide Nanopowder MSDSBismuth Oxide Nanopowder MSDS Sheet


  1. A Short Review on Biomedical Applications of Nanostructured Bismuth Oxide and Related Nanomaterials, M. Bartoli et al., Materials, 13(22), 5234 (2020); DOI: 13(22), 5234.
  2. The Molecular Structure of Bismuth Oxide by Raman Spectroscopy, D. Franklin et al., J. Solid State Chem., 97, 319-331 (1992); DOI: 10.1016/0022-4596(92)90040-3.
  3. Ferroelectricity in layered bismuth oxide down to one nanometer, Q. Yang et al., Science, 379 (6638), 1218-1224 (2023); DOI: 10.1126/science.abm5134.
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