Description

Cobalt Aluminum Oxide is a high-performance inorganic compound, also known as cobalt aluminate or cobalt blue spinel. This material is valued for its exceptional thermal stability and vivid blue coloration, making it a critical component in demanding industrial and artistic applications. It is primarily utilized by manufacturers in the ceramics, pigments, and specialty glass industries seeking durable, high-temperature colorants.

Application

• Ceramic Pigments & Glazes: As a stable blue colorant for porcelain, sanitaryware, and high-temperature ceramic tiles.
• Plastic & Polymer Coloring: For imparting heat-stable blue shades to engineering plastics and synthetic fibers.
• Specialty Glass & Enamels: Used in colored glass production and vitreous enamels for metals.
• Catalyst & Catalyst Support: Serves as a catalyst component or support in certain petrochemical and synthesis processes.
• Artists' Colors: A key ingredient in high-quality cobalt blue paints and pigments for fine arts and restoration.
• Refractory Materials: Incorporated into refractory linings and coatings for its thermal properties.

Basic Information

Product Name	Cobalt Aluminum Oxide
CAS No.	1333-88-6
Molecular Formula	Al2CoO4 / CoAl2O4
Molecular Weight	176.89 g/mol
Synonyms	Cobalt Aluminate; Cobalt Blue; Cobalt Blue Spinel; Cobaltous Aluminate; Thenard's Blue; Pigment Blue 28; CI 77346; Aluminium Cobalt Oxide
EINECS	215-589-8

Quality Control

Our Cobalt Aluminum Oxide is produced under a stringent quality management system to ensure batch-to-batch consistency and performance. Key parameters such as color strength, particle size distribution, and chemical purity are rigorously tested. A Certificate of Analysis (COA) detailing these specifications is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep the container sealed to minimize exposure to atmospheric moisture and contaminants.

Specification

Item	Specification
Appearance	Blue Powder
Identification (XRD)	Complies (Cobalt Aluminate Spinel Structure)
Assay (as CoAl2O4)	≥ 98.0 %
Cobalt (Co) Content	32.0 - 34.0 %
Aluminum (Al) Content	28.0 - 30.0 %
Particle Size (D50)	< 10 µm (or as specified)
Loss on Drying (105°C)	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.