25 grams/12€                        
100 grams/42€    
500 grams/153€   
1000 grams/216€   

Bismuth Oxide (Bi2O3) Micron Powder

Purity: 99.99%, Size: 1-5 µm

Bismuth Oxide (Bi₂O₃), also known as bismuth trioxide, is a bright yellow crystalline powder with very high purity (99.99%) and controlled particle size in the micron range. It is insoluble in water but soluble in concentrated acids, forming bismuth salts. The material exhibits high refractive index, good ionic conductivity, and strong optical absorption, making it valuable in advanced electronic and optical applications. Its large specific surface area and chemical stability also support catalytic and functional uses.

Technical Properties

Applications

• Electronics and Semiconductors: Utilized in varistor ceramics, thermistors, MOS devices, and dielectric layers due to its ionic conductivity and stability.
• Optical and Glass Industry: Applied in optical glass manufacturing as a coloring agent and refractive index modifier; also enhances performance in photonic devices.
• Catalysis and Specialty Chemicals: Serves as a catalyst in selective oxidation reactions and is used in pigments and specialty coatings.
• Energy and Environmental Applications: Acts as a photocatalyst for pollutant degradation and solar energy conversion; investigated as a solid electrolyte in fuel cells.
• Biomedical and Antibacterial Uses: Explored for antimicrobial coatings and biomedical engineering thanks to its biocompatibility and antibacterial activity.

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