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High Purity Bismuth(III) Oxide (Bi₂O₃) for Electrical Modifiers and Lead Oxide Replacement
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High Purity Bismuth(III) Oxide (Bi₂O₃) for Electrical Modifiers and Lead Oxide Replacement
| MOQ: | 500g, 1kg or 25kg for sample, 1000kg for commercial order |
| Standard Packaging: | Net Weight 25kg or 200kg/package |
| Delivery Period: | In 3 working days |
| Payment Method: | T/T,LC,OA |
| Supply Capacity: | 3000 Tons/month |
Detail Information
Place of Origin
Shanxi, China
Brand Name
Zorui
Certification
ISO, COA, MSDS, TDS, AAA
Model Number
1304-76-3
Name:
Bismuth(III) Oxide (Bi₂O₃)/ Bismuth Trioxide
CAS No.:
1304-76-3
Sample:
Available
Port:
Tianjin, Shanghai, Qingdao, Other Ports In China
Trade Term:
EXW, DAP, FOB, CFR, CIF, CPT, CIP
Shipping:
Sample By Express, 100kg+ By Air, 1000kg+ By Sea
Storage:
Cool, Dry, And Well-ventilated Area; Avoid Moisture And High Heat
Product Description
Bismuth(III) Oxide (Bi₂O₃) Bismuth Trioxide CAS 1304-76-3
Bismuth(III) Oxide, commonly known as Bismuth Trioxide (Bi₂O₃), is a highly significant inorganic compound of bismuth. It appears as a yellow crystalline powder and is renowned for its excellent electrical properties, high density, and low toxicity compared to other heavy metal oxides. As a leading global supplier, we provide both standard and high-purity grades of Bi₂O₃ (CAS 1304-76-3) to meet the precise demands of advanced manufacturing and research sectors worldwide.
Physical and Chemical Specifications
| Property | Specification |
|---|---|
| CAS Number | 1304-76-3 |
| EC Number | 215-134-7 |
| Molecular Formula | Bi₂O₃ |
| Appearance | Light yellow to yellow crystalline powder |
| Purity | ≥99.999% |
| Molecular Weight | 465.96 g/mol |
| Density | 8.9 g/cm³ |
| Melting Point | 817 °C |
| Boiling Point | 1890 °C (Decomposes) |
| Solubility | Insoluble in water; soluble in acids |
| Crystal Forms | Alpha (α), Beta (β), Delta (δ) phases available |
| Particle Size | Customizable (e.g., 1-5 µm, 5-20 µm, -100 mesh) |
Product Functions
- Electrical Modifier: Acts as a key dopant and additive in zinc oxide varistors (ZOV) for surge protection.
- Densification Aid: Promotes sintering and increases density in ceramic glazes and electronic ceramics.
- Opacifier & Colorant: Provides yellow hues and opacity in specialty glasses and ceramic glazes.
- Catalyst: Used as a catalyst or catalyst component in selective oxidation processes.
- Replacement Agent: A safer, non-toxic alternative for lead oxide (PbO) in many applications.
- Precursor Material: Serves as a starting material for the synthesis of other bismuth compounds and superconductors.
Application Areas
- Electronics & Electrical: Primary use in Zinc Oxide Varistors (ZOV) for circuit protection. Also used in multilayer ceramic capacitors (MLCCs), ferrite cores, and optoelectronic materials.
- Ceramics & Glass: As a pigment, opacifier, and flux in ceramic frits, glazes, and specialty glass (e.g., lead-free crystal).
- Catalysis: In the manufacturing of acrylic fibers and other chemical synthesis processes.
- Fire Retardants & Smoke Suppressants: As an additive in polymers and paints.
- Medicals & Cosmetics: High-purity grades are used as a raw material in bismuth-based medicals and pearlescent pigments.
- Research & Development: For developing new materials, including solid oxide fuel cells (SOFCs) and advanced ceramics.
Manufacturing Process
Our Bismuth(III) Oxide is produced through a tightly controlled process to ensure consistency and purity:
- Raw Material Sourcing: High-purity Bismuth metal is sourced from certified suppliers.
- Oxidation: The Bismuth metal is subjected to a high-temperature oxidation process in a controlled atmosphere furnace.
- Purification: The crude oxide undergoes chemical purification and thermal treatment to remove trace metallic impurities.
- Milling & Classification: The product is milled to the desired particle size distribution and classified to ensure uniformity.
- Quality Control: Every batch undergoes rigorous analysis (XRD, ICP-MS, Laser Diffraction) to verify chemical purity, phase composition, and particle size.
- Packaging: Final product is packed in moisture-proof, lined bags or drums to preserve quality during shipping and storage.
Why Choose Us
- Global Supply Leader: Consistent and reliable supply chain for both technical and high-purity grades.
- Technical Expertise: Decades of experience in inorganic chemistry and material science with expert application support.
- Quality Commitment: ISO-certified manufacturing with batch-to-batch consistency guaranteed by stringent QC protocols.
- Customization: We tailor particle size, purity, and crystal phase to your specific process requirements.
- Competitive Pricing: Cost-effective solutions without compromising on quality or performance.
- Dedicated Support: Responsive customer service and logistics team ensuring smooth order fulfillment worldwide.
FAQ (Frequently Asked Questions)
Q1: What is the main difference between technical grade and high-purity (5N) Bi₂O₃?
A: Technical grade (≥99%) is suitable for applications like ceramics and varistors. High-purity grade (99.999%, 5N) is essential for medicals, advanced electronics, and high-end research where trace metal content is critical.
Q2: Is Bismuth Trioxide a safe alternative to Lead Oxide?
A: Yes. Bi₂O₃ is widely regarded as the most effective direct replacement for PbO in many glass and ceramic formulations due to its similar density and fluxing properties, while being non-toxic and RoHS/REACH compliant.
Q3: Can you supply specific crystal phases (α, β, δ) of Bi₂O₃?
A: Absolutely. We can stabilize and supply different polymorphic phases, each with unique properties (e.g., δ-phase for high ionic conductivity), based on your application needs.
Q4: What packaging options do you offer?
A: We offer standard 25 kg bags (with moisture barrier), or custom packaging in smaller quantities (1kg, 5kg) for R&D and pilot plant use.
Q5: Do you provide technical data sheets (TDS) and safety data sheets (SDS)?
A: Yes. A comprehensive TDS and SDS (following GHS standards) are available for download on our product page and are provided with every shipment.
Q6: What is your typical lead time and minimum order quantity (MOQ)?
A: MOQ starts at 25 kg for standard grades. Lead times vary; stock items ship immediately, while custom orders typically require 2-4 weeks. Contact our sales team for specific details.
Product Documentation
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