What is Cobalt Aluminate Blue Spinel Nanopowder (CoAl₂O₄)?

Cobalt Aluminate Blue Spinel Nanopowder (CoAl₂O₄) is a high-quality, chemically stable inorganic pigment renowned for its vivid blue color, heat resistance, and excellent optical properties. This nanopowder is extensively used in ceramics, coatings, paints, plastics, and advanced materials due to its durability and thermal stability.

Chemical Properties and CAS Number

• Chemical Formula: CoAl₂O₄
• CAS Number: 1345-16-0
• Appearance: Bright blue fine nanopowder
• Density: ~4.7 g/cm³
• Particle Size: Typically 20-100 nm (customizable)
• Melting Point: >1900°C
• Solubility: Insoluble in water, stable in acidic and alkaline environments
• Chemical Stability: High thermal stability, resistant to chemicals and UV radiation

Applications of Cobalt Aluminate Blue Spinel Nanopowder (CoAl₂O₄)

1. Ceramic and Glass Industries

Widely used as a coloring agent in ceramics, porcelain, enamels, and glassware to achieve vivid and stable blue shades.

2. Paints and Coatings

Employed in automotive and industrial coatings for enhancing color durability, resistance to fading, and protection against environmental factors.

3. Plastics and Polymers

Integrated into plastics and polymer composites for aesthetic enhancement, improved thermal stability, and UV resistance.

4. High-Temperature Applications

Suitable for high-temperature coatings, refractory materials, and protective finishes due to its exceptional thermal and chemical stability.

5. Optical and Electronic Devices

Applied in optoelectronics, sensors, and advanced displays because of its superior optical properties and resistance to harsh environments.

Pricing of Cobalt Aluminate Blue Spinel Nanopowder (CoAl₂O₄)

Pricing varies based on purity, particle size, and application-specific requirements:

• Industrial Grade: Typically ranges from $50 – $400 per kilogram
• High-Purity/Specialized Grade: Prices range from $500 – $2,000 per kilogram, commonly used in advanced electronics and specialized ceramic applications.

Factors Influencing Cobalt Aluminate Prices

• Purity and particle size distribution
• Surface functionalization and custom treatments
• Production method and synthesis complexity
• Market demand in ceramics, coatings, electronics, and high-temperature applications

Conclusion

Cobalt Aluminate Blue Spinel Nanopowder (CoAl₂O₄) is highly valued for its vivid blue color, thermal stability, and chemical resistance, making it essential in ceramics, coatings, plastics, and advanced technology applications. Pricing depends significantly on purity, particle size, and intended industry use.