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What is Bismuth trioxide?

What is Bismuth trioxide?
Bismuth trioxide (bismuth oxide) is an inorganic compound with the molecular formula Bi2O3. The pure product has α type, β type, and δ type. α type is yellow monoclinic crystal, relative density 8.9, melting point 825 ℃, soluble in acid, insoluble in water and alkali; β type is bright yellow to orange, tetragonal crystal system, relative density 8.55, melting point 860 ℃, soluble Acid, insoluble in water. It is easily reduced to metallic bismuth by hydrogen, hydrocarbons, etc.; δ-Bi2O3 is a special material with a cubic fluorite ore structure. 1/4 of the oxygen ion position in its crystal lattice is vacant, so it has a very high oxygen ion conductivity. The main application objects of bismuth oxide are electronic ceramic powder materials, electrolyte materials, photoelectric materials, high-temperature superconducting materials, and catalysts. Bismuth oxide is an important additive in electronic ceramic powder materials, and its purity is generally required to be above 99.15%. The main application objects are zinc oxide varistors, ceramic capacitors, and ferrite magnetic materials.
How is bismuth trioxide prepared?
To the bismuth nitrate solution (80-90° C.), an aqueous sodium hydroxide solution containing no carbon dioxide was added dropwise and mixed. The solution remains alkaline during the precipitation process, forming a white, volume-swelling bismuth oxide hydrate Bi(OH)3 precipitate. This solution is heated and stirred for a short time to be dehydrated into yellow bismuth trioxide. After washing with water decantation, filtering, and drying, the finished bismuth oxide is obtained.

Application fields of bismuth trioxide
Bismuth trioxide is used as electronic ceramic powder materials, electrolyte materials, photoelectric materials, high-temperature superconducting materials, and catalysts. In addition, bismuth oxide can also be used as an important additive in electronic ceramic powder materials, and the purity is generally required to be above 99.15%. The main application objects are zinc oxide varistors, ceramic capacitors, and ferrite magnetic materials; and glaze rubber Compounding agent, medicine, red glass compounding agent, etc.
Bismuth trioxide Supplier
TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials. Currently, our company has successfully developed a series of materials. The Bismuth trioxide produced by our company has high purity, fine particle size, and impurity content. For the latest price of Bismuth trioxide, send us an email or click on the needed products to send an inquiry.
 
 

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