Description

Cobalt Chromite Blue Green Spinel CAS NO 68187-11-1 is a high-performance, inorganic blue-green pigment belonging to the spinel class of complex inorganic color pigments (CICPs). This compound is valued for its exceptional thermal stability, chemical inertness, and outstanding weatherability, making it a superior choice for demanding applications. It is primarily used by manufacturers in the ceramics, plastics, coatings, and construction materials industries seeking durable, fade-resistant coloration.

Application

• Ceramic Glazes and Bodies: Imparts stable blue-green hues in sanitaryware, tiles, and tableware fired at high temperatures.
• Engineering Plastics and Polymers: Provides color for automotive components, appliance housings, and other plastics requiring heat stability during processing.
• Industrial and Architectural Coatings: Used in coil coatings, powder coatings, and heavy-duty paints where resistance to UV light, chemicals, and weathering is critical.
• Construction Materials: Colors concrete, roofing granules, and mortar for long-lasting aesthetic appeal.
• Specialty Glass: Employed as a colorant in certain types of glass and enamels.
• Artists' Colors and Inks: Used in high-quality, lightfast artists' paints and specialty printing inks.

Basic Information

Product Name	Cobalt Chromite Blue Green Spinel
CAS No.	68187-11-1
Molecular Formula	Co(Al,Cr)2O4 / CoCr2O4 (typical representation)
Molecular Weight	~226.93 g/mol (for CoCr2O4)
Synonyms	Cobalt Chromite; Cobalt Chromite Spinel; C.I. Pigment Green 26; C.I. 77344; Cobalt Green Spinel; Chromium Cobalt Oxide; Cobalt Chromium Oxide; Cobalt Chromite Blue-Green; Cobalt Chromium Spinel; Cobalt Chromite Green Spinel; Cobalt Aluminate Chromite
EINECS	269-067-6

Quality Control

Our Cobalt Chromite Blue Green Spinel is manufactured under a stringent quality management system to ensure batch-to-batch consistency. Quality is verified through comprehensive testing of key parameters including color value, particle size distribution, chemical composition, and thermal stability. Certificates of Analysis (COA) detailing these specifications are provided with every shipment.

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 away from incompatible materials. The container should be kept tightly closed when not in use to prevent contamination and moisture absorption.

Specification

Item	Specification
Appearance	Blue-Green Powder
Color Value (L*, a*, b*)	Per customer requirement
Particle Size (D50)	0.5 - 5.0 µm (adjustable)
Oil Absorption	10 - 25 g/100g
pH (10% Slurry)	6.0 - 8.0
Loss on Ignition (1000°C)	≤ 1.0 %
Water Soluble Matter	≤ 0.5 %
Heavy Metals (as Pb)	≤ 50 ppm

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