Bismuth Oxide Micron Powder (Bi₂O₃, 99.99%, 1-5 µm)
Technical Specifications:
- Chemical Formula: Bi₂O₃
- Purity: 99.99% (high purity)
- Particle Size: 1-5 µm (microns)
- Appearance: Yellow to pale yellow powder
- Density: Approximately 8.9 g/cm³ (varies depending on the specific grade)
- Melting Point: 817°C (1,503°F)
- Boiling Point: 1,500°C (2,732°F)
- Molecular Weight: 465.96 g/mol
- Solubility: Insoluble in water, but soluble in acids such as nitric acid (HNO₃) and hydrochloric acid (HCl).
- Crystal Structure: Monoclinic or tetragonal, depending on temperature and preparation conditions.
Applications:
- Electronics & Semiconductor Industry:
- Bismuth Oxide is used in the production of semiconductors and various electronic components due to its high dielectric constant and excellent electrical insulating properties. It is commonly used in the creation of varistors and thermistors.
- Optical Materials:
- Bismuth Oxide micron powder is used in optical materials, particularly in lenses and coatings, because of its high refractive index. It enhances the performance of optical components used in lasers and other high-precision instruments.
- Catalysis:
- Bismuth Oxide plays a significant role in catalytic applications, particularly in oxidation reactions, such as in the production of acetic acid and other industrial chemicals. It serves as a catalyst in organic chemistry.
- Thermal Insulation:
- Its high thermal stability makes Bismuth Oxide useful in high-temperature applications. It is used in some thermal barrier coatings, especially in high-performance industrial machinery.
- Advanced Ceramics:
- Bismuth Oxide is used in the production of advanced ceramics. These materials find applications in high-temperature environments, as they possess excellent mechanical strength and heat resistance.
- Nuclear Industry:
- Bismuth Oxide is utilized in the nuclear industry as part of nuclear reactors. It is a component in radiation shielding materials due to its ability to absorb neutron radiation and protect sensitive equipment.
- Cosmetics and Pigments:
- Due to its non-toxic and bio-compatible nature, Bismuth Oxide is used in cosmetics (such as foundations, face powders, etc.) as a pigment. It gives a shimmering, reflective finish in cosmetics.
- Ionizing Radiation Shielding:
- Bismuth oxide is employed as a radiation shield in medical and scientific applications due to its high atomic number, which is effective in absorbing gamma and X-ray radiation.
- Superconductors:
- Bismuth oxide is sometimes used as a superconductor in high-temperature superconducting applications, particularly in the form of compounds that incorporate bismuth oxide.
- Gas Sensors:
- Bismuth oxide is used in the development of gas sensors, particularly for the detection of oxygen and other gases, due to its semiconducting properties.
These characteristics and applications make Bismuth Oxide Micron Powder (Bi₂O₃, 99.99%, 1-5 µm) a versatile and valuable material in various advanced industrial sectors.
