What is bismuth oxide used for?

Nature of Bismuth oxide

It is quickly reduced to metal bismuth by hydrogen, hydrocarbons, etc.; δ-Bi2O3 is a unique material with a cubic fluorite mineral structure, and 1/4 of the oxygen ion positions in its lattice are vacant, so it has a very high Oxygen ion conductivity. The main application objects of bismuth oxide are electronic ceramic powder materials, electrolyte materials, optoelectronic materials, high-temperature superconducting materials, and catalysts. Bismuth oxide is an essential additive in electronic ceramic powder materials, and its purity is generally required to be above 99.15%. The main application objects include zinc oxide varistors, ceramic capacitors, and ferrite magnetic materials.

Application of Bismuth oxide

Used in preparing bismuth salts; used as electronic ceramic powder materials, electrolyte materials, photoelectric materials, high-temperature superconducting materials, and catalysts. Bismuth oxide is an essential additive in electronic ceramic powder materials, and its purity is generally required to be above 99.15%. The main application objects include zinc oxide varistors, ceramic capacitors, ferrite magnetic materials, red glass compounding agents, etc.

The manufacturing method of Bismuth oxide

Add a carbon dioxide-free sodium hydroxide aqueous solution dropwise to a bismuth nitrate solution (80-90° C.), and mix it. The answer remains alkaline during precipitation, and a white, volume-expanding bismuth oxide hydrate Bi(OH)3 precipitate is formed. The solution is heated and stirred briefly to dehydrate and turn into yellow bismuth trioxide. Wash by decantation with water, filter and dry to obtain finished bismuth oxide.

Under nitrogen atmosphere, add 1.5 mol/L sodium hydroxide aqueous solution without carbon dioxide dropwise to 0.1 mol/L bismuth nitrate solution (at 80-90° C.) dissolved in 1 mol/L nitric acid, and mix them. The solution remains alkaline during precipitation. Although a white, volume-expanding bismuth oxide hydrate Bi(OH)3 precipitate is formed, stirring in the hot key for a while dehydrates and turns into light yellow bismuth trioxide. It was washed 15 times by decantation with water free of air and carbon dioxide, filtered and dried.

Price of Bismuth oxide

Particle size and purity will affect the product's price, and the purchase volume can also affect the cost of particle size. A large amount of large amount will be lower. The price of particle size can be found on our company's official website.

Bismuth oxide supplier

Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including Zinc sulfide, nitride powder, Zinc sulfide powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective bismuth oxide, you are welcome to contact us or inquire at any time.

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