Tlenek bizmutu Bi2O3 >99,9% - 100g

Bismuth(III) Oxide – Bi₂O₃ >99.9%

Other Names: Bismuth trioxide, Bismuth sesquioxide
Chemical Formula: Bi₂O₃
Molar Mass: 465.96 g/mol
CAS Number: 1304-76-3
Appearance: Pale yellow to orange-yellow powder
Odor: Odorless

Physical and Chemical Properties

• Density: 8.9–9.5 g/cm³

• Melting Point: ~817 °C

• Boiling Point: Decomposes at high temperature

• Solubility:

  • Water: Insoluble

  • Acids: Soluble in hydrochloric and nitric acid

• Refractive Index: High (used in optical materials)

• Crystal Structure: Monoclinic (α-Bi₂O₃) at room temperature

Applications

• Ceramics and Glass: Used in high-refractive index glass, glazes, and optical coatings

• Electronics: Employed in dielectric materials and oxide ion conductors

• Catalysis: Acts as a catalyst or support in organic transformations and oxidation reactions

• Pigments: Source of bright yellow coloration in high-performance coatings

• Synthesis: Intermediate in bismuth compound production

• Fusible Alloys: Used in some low-melting alloys due to its high density

Safety Information

This chemical does not meet GHS hazard criteria for 100% (9 of 9) of all reports. Pictograms displayed are for < 0.1% (0 of 9) of reports that indicate hazard statements.

Handling and Storage

• Handling: Avoid generation of dust. Work under fume hood or ventilated space when handling powder

• Storage: Store in a sealed container in a cool, dry place, away from acids and moisture

Environmental Considerations

While bismuth compounds are considered less toxic than heavy metals like lead or cadmium, fine Bi₂O₃ particles may pose a hazard to aquatic environments if released. Avoid uncontrolled disposal.