Name: Bismuth trioxide, Bismuth(III) oxide Molecular formula: Bi2O3
CAS: 1304-76-3 Molecular weight: 465.96
Description: Bismuth trioxide (bismuth oxide) pure products have α, β and δ types. α type is a yellow monoclinic crystal system, soluble in hydrochloric acid and nitric acid, insoluble in water. It turns brown red when heated, and yellow when cold. The preparation process is to add sodium hydroxide solution without carbon dioxide into bismuth nitrate solution (80-90℃) for mixing. During the precipitation process, the solution remained alkaline, forming a white, volume expanding bismuth oxide hydrate Bi(OH)3 precipitation. Heating the solution, stirring for a short time, the solution dehydrated into yellow bismuth oxide. Bismuth oxide was prepared by washing, filtering and drying with water decantation.
Specification:
|
Name |
Bi2O3_5N |
Bi2O3_4N |
Bi2O3_3N |
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|
Molecular formula |
Bi2O3 |
Bi2O3 |
Bi2O3 |
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|
CAS |
1304-76-3 |
1304-76-3 |
1304-76-3 |
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|
Bi2O3 content |
% |
≥99.999 |
≥99.99 |
≥99.9 |
|
|
Bi content |
% |
≥89.5 |
≥89.5 |
≥89.4 |
|
|
|
Ag |
% |
≤1.0×10-4 |
≤5×10-4 |
≤5×10-4 |
|
Cu |
% |
≤1.0×10-4 |
≤5×10-4 |
≤5×10-4 |
|
|
Mg |
% |
≤0.5×10-4 |
≤10×10-4 |
≤10×10-4 |
|
|
Ni |
% |
≤0.5×10-4 |
≤5×10-4 |
≤5×10-4 |
|
|
Ca |
% |
≤1.0×10-4 |
≤5×10-4 |
≤10×10-4 |
|
|
Fe |
% |
≤0.5×10-4 |
≤10×10-4 |
≤10×10-4 |
|
|
Cd |
% |
≤0.5×10-4 |
≤1.0×10-4 |
≤2.0×10-4 |
|
|
Pb |
% |
≤0.5×10-4 |
≤5×10-4 |
≤5×10-4 |
|
|
Al |
% |
-- |
≤5×10-4 |
≤10×10-4 |
|
|
Na |
% |
-- |
≤10×10-4 |
≤50×10-4 |
|
|
Cl |
% |
-- |
≤10×10-4 |
≤10×10-4 |
|
|
SO42- |
% |
-- |
≤10×10-4 |
≤10×10-4 |
|
|
property |
Yellow powder |
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Application |
It is used to prepare bismuth salt; used as electronic ceramic powder material, electrolyte material, photoelectric material, high temperature superconductor material, catalyst. |
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package |
Conventional packaging, flexible packaging according to customer needs |
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Packing: 25 kg plastic bucket, also provide small package: 100g, 500g, and other small packages
Uses: Bismuth oxide is used in the preparation of bismuth salt, as electronic ceramic powder material, electrolyte material, photoelectric material, high temperature superconductor material and catalyst. Bismuth oxide, as an important additive in electronic ceramic powder materials, is generally required to have a purity of more than 99.15%. Its main application objects include zinc oxide varistor, ceramic capacitor and ferrite magnetic material, as well as glaze medicine rubber compound, medicine, red glass compound, etc.
