Cerium Oxide Powder (CeO2 99.99%)

Description

1. Product Overview

This product is a high-purity Cerium Oxide (CeO₂) powder, precision-engineered to 99.99% purity for mission-critical industrial applications. It serves primarily as a advanced polishing agent for precision optics and semiconductor components, as well as a key catalyst support material in emissions control systems. Its value proposition lies in delivering consistent, ultrafine particle morphology that maximizes material removal rates while minimizing surface defects. Strategically, this grade is indispensable as global demand rises for high-performance electronics, automotive catalysts, and precision glass, where sub-ppm impurity control directly impacts yield and operational efficiency.

2. Key Specifications & Technical Characteristics

• Chemical Composition: CeO₂ (minimum 99.99%), with Rare Earth Impurities (La, Pr, Nd, Sm, Y) < 100 ppm; Non-rare earth impurities (Fe, Si, Ca, Al) < 50 ppm

• Purity Grade: 4N (99.99%)

• Physical Form: Fine powder, pale yellow to white

• Particle Size (D50): 0.5 – 1.5 µm (customizable down to 0.2 µm for CMP slurries)

• Specific Surface Area (BET): 5 – 15 m²/g (tailored for dispersion)

• Density (Tap): 1.8 – 2.5 g/cm³

• Loss on Ignition (LOI): < 1% at 1000°C

• Packaging Options: 25 kg net HDPE drums with inner PE liner; 500 kg FIBC bulk bags; 100 g to 5 kg R&D samples

• Shelf Life: 24 months in unopened, dry environment (hygroscopic but stable; avoid caking)

3. Core Industrial Applications

• Precision Optics & Semiconductors (Chemical Mechanical Planarization – CMP): Achieves sub-nanometer surface roughness on glass, quartz, and silicon wafers. Outperforms alumina and zirconia due to higher chemical reactivity (Ce³⁺/Ce⁴⁺ redox cycling), enabling faster removal rates at lower particle impact – reducing micro-scratches by >40%.

• Automotive Exhaust Catalysts (Three-Way Catalysts – TWC): Functions as an oxygen storage capacitor, buffering lambda fluctuations. 99.99% purity eliminates catalyst poisons (e.g., sulfur, phosphorus), extending converter life by 25% over standard 95% grades.

• Glass & Lens Finishing (LCD, smartphone camera modules): Removes lapping damage without sub-surface fractures. Superior selectivity over iron oxide reduces waste slurry volume by 30%, lowering disposal costs.

• Solid Oxide Fuel Cells (SOFC): As an electrolyte or barrier layer dopant, its high ionic conductivity at 600–800°C improves power density by 15% compared to lower-purity alternatives.

4. Competitive Advantages

• Quality Consistency: SPC-controlled lot-to-lot variance < 2% for D50 and purity; each batch certified by ICP-OES and XRD. Certificate of Analysis (COA) provided with every shipment.

• Supply Reliability: Vertically integrated from rare earth chloride refining to final calcination. Two independent production lines ensure 50 MT/month capacity with 99% on-time delivery (past 12 months).

• Logistics Capability: Pre-cleaned, anti-static packaging for semiconductor-grade material. Global warehousing in USA (Houston), EU (Rotterdam), and Asia (Shanghai) – expedited lead times as low as 5 working days.

• Price Competitiveness: Direct-sourced bastnäsite precursor eliminates 2–3 intermediary markups. Offers 12–18% cost savings vs. equivalent Japanese or European 99.99% grades.

• Sustainability & Documentation: ISO 14001 certified; zero liquid discharge in manufacturing. Full REACH and RoHS compliance; Conflict Mineral-free affidavit available.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): 20 kg for standard 0.5–1.5 µm grade; 50 kg for custom particle size distribution.

• Bulk Loading Capacity: 20 MT per 20-foot dry container (standard density: 2,200 kg/palletized drum, stacked 2-high; total net weight). Full container load (FCL) only – LCL available for orders >1,000 kg.

• Lead Time: R&D samples (≤5 kg) – 3 working days; MOQ orders – 10 working days ex-warehouse; bulk 20 MT – 20 working days after PO and LC/advance payment.

• Pricing Basis: Available upon request for annual contracts (3, 6, or 12 months) with fixed or index-linked ceiling. Volume discounts from 200 MT/year.