In the world of chemical manufacturing and material science, a deep understanding of a compound's properties is the foundation for successful application and procurement. Bismuth(III) oxide, CAS 1304-76-3, is no exception. This inorganic compound, supplied as a light yellow or yellow heavy powder, exhibits characteristics that make it invaluable across a spectrum of industrial sectors, from advanced catalysis to cutting-edge electronic materials. As a manufacturer and supplier dedicated to providing high-quality chemicals, we aim to equip our clients with the knowledge they need.

The most commonly cited appearance for Bismuth(III) oxide is a light yellow to yellow heavy powder. This physical characteristic is important for quality control, as variations in color can sometimes indicate impurities or differences in particle size and morphology. For industrial buyers, ensuring the received product matches the expected appearance is an initial step in verifying quality. Coupled with this is the chemical purity, often specified as a minimum assay of Bismuth(III) oxide (Bi₂O₃), typically ≥99% or ≥99.5%. This high purity is essential for applications where even trace impurities can negatively affect performance, such as in catalysts or for creating specific electronic band gaps in superconductor materials.

Chemically, Bismuth(III) oxide is considered a basic oxide. This means it readily reacts with acids to form bismuth salts. For example, reacting it with concentrated aqueous sodium hydroxide and bromine yields sodium bismuthate, while dissolution in aqueous acids can produce complex bismuth ions like [Bi₆O₄(OH)₄]⁶⁺ and [Bi(OH₂)₉]³⁺. This reactivity is important to consider during handling, storage, and formulation. For researchers and formulators, understanding these chemical behaviors allows for the correct integration of Bismuth(III) oxide into synthesis routes or product compositions. For buyers, knowing this reactivity helps in selecting appropriate storage and handling protocols.

The structural properties of Bismuth(III) oxide are also noteworthy, especially concerning its various polymorphs (α, β, γ, δ, ε phases) that exist at different temperatures. The high-temperature cubic δ-phase, for instance, is known for its ionic conductivity, which is of significant interest for applications in solid-oxide fuel cells. While precise control over these phases might be critical for highly specialized applications, for general industrial use, consistent bulk properties are usually the focus. As a supplier, we ensure our Bismuth(III) oxide product meets the necessary specifications for common industrial applications, providing detailed technical data upon request.

For businesses looking to purchase Bismuth(III) oxide, partnering with a reliable manufacturer in China offers a strategic advantage in terms of both cost and availability. We pride ourselves on being a leading supplier, committed to delivering Bismuth(III) oxide that adheres to stringent quality standards. We encourage procurement specialists and R&D scientists to reach out to us for detailed specifications, competitive pricing, and expert advice on sourcing this critical inorganic material. Understanding these properties will empower you to make informed purchasing decisions and maximize the value derived from our Bismuth(III) oxide.