What is Chromium Oxide (Cr₂O₃) Nanopowder/Nanoparticles?

Chromium Oxide (Cr₂O₃) nanopowder consists of ultra-fine chromium(III) oxide particles known for their excellent thermal stability, corrosion resistance, and optical properties. It is widely used in coatings, ceramics, catalysts, and electronic applications due to its high chemical resistance and wear protection.

Chemical Properties and CAS Number

• Chemical Formula: Cr₂O₃
• CAS Number: 1308-38-9
• Appearance: Green fine powder
• Density: Approximately 5.21 g/cm³
• Melting Point: ~2,435°C
• Solubility: Insoluble in water, soluble in acids
• Chemical Stability: High oxidation resistance, excellent wear and thermal stability

Applications of Chromium Oxide Nanoparticles

1. Coatings and Surface Protection

Used in wear-resistant coatings, thermal barrier coatings, and anti-corrosion coatings for enhanced durability.

2. Ceramics and Pigments

Applied as a green pigment in ceramics, paints, and glass due to its excellent heat and UV resistance.

3. Catalysis and Chemical Processing

Employed in industrial catalysts for oxidation reactions, hydrogenation, and polymer production.

4. Electronics and Semiconductor Industry

Used in thin-film transistors, microelectronics, and conductive coatings for high-performance applications.

5. Aerospace and High-Temperature Applications

Utilized in aerospace coatings, high-temperature materials, and structural components for extreme environments.

6. Biomedical and Pharmaceutical Applications

Applied in bio-compatible coatings, drug delivery systems, and medical imaging technologies.

Pricing of Chromium Oxide Nanopowder

Prices vary based on purity, particle size, synthesis method, and specific industry applications:

• Industrial Grade: Typically ranges from $50 – $400 per kilogram
• High-Purity/Specialized Grade: Prices range from $1,200 – $5,000 per kilogram, used in advanced coatings, electronics, and catalysis.

Factors Influencing Chromium Oxide Powder Prices

• Purity level and particle size distribution
• Functionalization and surface modifications
• Processing complexity and synthesis method
• Bulk order volume and market demand

Conclusion

Chromium Oxide (Cr₂O₃) nanopowder is a versatile material used in coatings, ceramics, catalysis, and electronic applications. Its superior oxidation resistance, thermal stability, and wear resistance make it essential for next-generation industrial and scientific applications. Pricing depends on purity, particle specifications, and intended use.