Bismuth

Bismuth Oxide

CAS #: 1304-76-3
Molecular Formula: Bi2O3
EC No.: 215-134-7

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Product Details

Bismuth oxide is an inorganic compound with the molecular formula Bi2O3. Pure products are available in α type, β type and δ type. The α type is a yellow monoclinic crystal system with a relative density of 8.9 and a melting point of 825 ℃. It is soluble in acids but insoluble in water and alkali. The β type is bright yellow to orange, with a cubic crystal system, a relative density of 8.55, a melting point of 860 ℃, soluble in acid but insoluble in water. It is easily reduced to metallic bismuth by hydrogen, hydrocarbons, etc. δ-Bi2O3 is a special material with a cubic fluorite mineral structure. One quarter of the oxygen ion positions in its lattice are vacant, thus it has extremely high oxygen ion conductivity.

Applications:

1.It is used for making electronic ceramic powder materials.

2. It is used for making photoelectric materials.

3. It is used for making catalysts.

4. It is used for making high-temperature superconducting materials.

5. It is used for making red glass compounding agents, etc.

Product Series

Product	Product code	Security Data	Technical Data
Bismuth oxide 99.9%	ET-Bi-01	Bismuth(III) oxide.pdf	Bismuth Oxide Bi2O3 99.9%.pdf
Bismuth oxide 99.99%	ET-Bi-02		Bismuth Oxide Bi2O3 99.999%.pdf
Bismuth oxide 99.999%	ET-Bi-03		Bismuth Oxide Bi2O3 99.999%.pdf

Properties (Theoretical)

Molecular Formula	Bi₂O₃
Molecular Weight	465.96
Appearance	Yellow Powder
Melting Point	817° C (1,503° F)
Boiling Point	1890 °C (3434 °F)
Density	8.9 g/cm³
Precise Quality	465.945541
Single Isotope Mass	465.945541

Health & Safety Information

Signal Word	Warning
Risk Statement	H315-H319-H335
Dangerous Code	Xi
Preventive Instructions	N/A
Flash Point	Not applicable
Risk Code	36/37/38
Safety Instructions	26-36/37
RTECS	EB2984460
Transportation Information	NONH
WGK Germany	2

Packaging Specifications:

Standard packaging: 50 kg/drum, 500 kg/pallet, ton bags

Sample packaging: 500 g/bag, 1 kg/bottle

Bismuth Oxide

Add a sodium hydroxide aqueous solution free of carbon dioxide to the bismuth nitrate solution (80-90℃) and mix them. During the precipitation process, the solution remains alkaline and forms white, volume-expanding bismuth oxide hydrate Bi(OH)3 precipitate. When this solution is heated and stirred for a short time, it dehydrates and turns into yellow bismuth trioxide. Bismuth oxide products are obtained after water decanting, washing, filtration and drying.

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