Forsmann high-purity ultrafine bismuth oxide(CAS:1304-76-3)

Bismuth(III) oxide powder

Basic information

English name：Bismuth(III) oxide powder

Molecular formula：Bi₂O₃

Molecular weight：465.959

CAS#：1304-76-3

Melting point：825℃

Density：8.9 g/cm³

Appearance: Yellow powder

Refractive index：1.99

Flash point：1890℃

Solubility: Soluble in hydrochloric acid and nitric acid, insoluble in water. It turns maroon when heated and yellow when it is cold

Storage method: Should be stored in a ventilated and dry warehouse. The packaging should be sealed, moistureproof, and do not come into contact with alkalis and acids

Product description

Bismuth oxide is a kind of inorganic compound. The pure products are α type, β type and δ type. α type is yellow monoclinic crystal system, relative density is 8.9, melting point is 825℃, soluble in acid, β type is bright yellow to orange, square crystal system, relative density 8.55, melting point 860℃. It is easy to be reduced to metal bismuth by hydrogen and hydrocarbons, etc. δ-Bi₂O₃ is a special material with cubic fluorite structure, and the oxygen ion position of 1 max 4 in its lattice is vacant, so it has very high oxygen ion conductivity.

（1）Bismuth oxide is mainly used in electronic ceramic powder materials, electrolyte materials, optoelectronic materials, high temperature superconducting materials and catalysts；

（2）Bismuth oxide is an important additive in electronic ceramic powder materials, and its purity is generally more than 99.15%. The main applications are zinc oxide varistors, ceramic capacitors and ferrite magnetic materials；

（3）The catalysts in the petrochemical industry make use of the characteristics of large specific surface area, high activity and good selectivity to greatly improve the catalytic activity, effectively reduce the production cost, and related passivators and auxiliaries；

（4）High performance bismuth silicate single crystal, bismuth based high temperature superconducting materials, high quality optical glass, optical fiber, fireworks, new oxidation sensing materials, fuel cell electrolytes, rechargeable alkaline zinc manganese battery, flame retardant, clarifier, etc；

（5）The shadow mask coating material of color picture tube can effectively prevent the shadow mask from rising, and the components of automobile topcoat can replace toxic metal to realize green environmental protection；

Product advantage

The Forsman plant can produce products of different sizes, such as nanometer level, submicron level, micron level and so on. The products that have been industrially produced are 0.2 μm, 0.8 μm, 1 μm, 1.5 μm, 2 μ m and 45 μm, all of which can be supplied at tonnage level and can be customized by customers with other granularities. In order to meet the needs of the laboratory, we generally have packaging specifications such as 100 g, 250 g, 500 g, 1 kg, etc., in order to meet the needs of laboratory research users, and we can customize the packaging specifications according to the quantity of materials supplied by customers.

Product display

Figure | 8302001 bismuth oxide powder 1 μm