Cobalt Aluminate powder, also known as cobalt blue spinel powder, is a high-performance inorganic blue pigment and functional material. With its exceptional high-temperature resistance, chemical stability, and vibrant color, it is widely used in high-end ceramics, engineering plastics, coatings, and catalysis.
We specialize in providing high-purity, controllable particle size premium CoAl2O4 powder. For samples or customized technical solutions, please contact us immediately.
Pure cobalt blue phase, high tinting strength
High temperature resistance, weather resistance, and corrosion resistance
High purity, extremely low impurity content
Customizable particle size, uniform distribution
Provides comprehensive application technical guidance
Stable supply, consistent batches
Advanced Ceramics and Glazes: As a stable blue pigment, it is used in the production of high-end art ceramics, sanitary ware, and tiles, ensuring long-lasting, fade-resistant glaze color.
High-Performance Engineering Plastics: Provides high-temperature resistant and migration-resistant blue coloring solutions for engineering plastics such as nylon and PBT, suitable for automotive parts and electronic appliance housings.
Specialty Coatings and Paints: Used to prepare industrial coatings and marine paints that require long-term exposure to outdoor or harsh environments, maintaining color and gloss durability.
Catalysis and Functional Materials: Its spinel structure allows it to be used as a catalyst or carrier in certain environmentally friendly catalytic reactions and functional composite materials.
Q1: What is the difference between Cobalt Aluminate powder and ordinary cobalt blue pigment?
A1: The key difference lies in stability and performance. Ordinary cobalt pigments may be mixtures, while CoAl2O4 has a defined spinel structure, exhibiting superior high-temperature resistance, acid and alkali resistance, and weathering resistance, making it suitable for harsher environments.
Q2: What is the maximum temperature this powder can withstand?
A2: Its crystal structure is very stable, with long-term temperature resistance exceeding 1200°C and the ability to withstand even higher temperatures for short periods, making it an ideal choice for coloring high-temperature ceramics and glass fibers.
Q3: How do I determine the amount to add to my product system?
A3: The amount added varies depending on the desired color depth, substrate characteristics, and process. We can provide suggested initial addition ratios and process guidance based on your specific application.
Q4: Is the product safe and environmentally friendly?
A4: The product itself is chemically stable and insoluble in common solvents. When handling the powder, it is recommended to follow standard industrial dust protection measures, but as a coloring component in the final product, it is safe and stable.
Each batch is supplied with:
Certificate of Analysis (COA)
Technical Data Sheet (TDS)
Material Safety Data Sheet (MSDS)
Third-party testing reports available upon request.
We are not only a manufacturer of CoAl2O4 powder, but also your partner for material application solutions. Choosing us means choosing a high-quality, stable material supplier.
Molecular Formula: CoAl₂O₄
Molecular Weight: 153.90 g/mol
Appearance: Dark blue
Density: 6.11 g/cm³ (theoretical density)
Melting Point: Approximately 1,900 ℃
Crystal Structure: Cubic crystal system, spinel structure
Inner Packaging: Vacuum-sealed bags and boxed to prevent contamination and moisture.
Outer Packaging: Cartons or wooden crates selected based on size and weight.
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