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Product name: Cobalt Aluminate Blue Pigment
Other names: Cobalt Blue Pigment, Cobalt Aluminate Blue, Cobalt Blue
Properties: Cobalt/aluminum oxide (Co-Al-O)
Chemical formula: CoAl2O4
C.I. No.: Pigment blue 28/P.B.28(77346)
EC Number: 310-193-6
CAS No.: 1345-16-0
Crystal form: spinel type
History of Cobalt Aluminate Blue Pigment
Since ancient times, ores containing cobalt have been utilized as pigments to impart a blue hue to porcelain and glass.
TDS Parameters of Cobalt Aluminate Blue Pigment:
|
Item (Unit)/Code |
2805 |
2806 |
2810 |
|
Average Particle Size (μm) |
2.0 Max |
2.0 Max |
2.0 Max |
|
Temperature Fastness (℃) |
1200 |
1200 |
1200 |
|
Light Fastness (Grade: 1-8) |
8 |
8 |
8 |
|
Weather Fastness (Grade: 1-5) |
5 |
5 |
5 |
|
Acid and alkali Fastness (Grade: 1-5) |
5 |
5 |
5 |
|
Oil Absorption (g/100g) |
20-40 |
20-40 |
20-40 |
|
Density (g/cm3) |
3.8-5.4 |
3.8-5.4 |
3.8-5.4 |
|
pH |
6.0-9.0 |
6.0-9.0 |
6.0-9.0 |
|
Water Soluble Salts (%) |
≤0.3 |
≤0.3 |
≤0.3 |
|
Moisture (%) |
≤0.2 |
≤0.2 |
≤0.2 |
|
Residue on 45um sieve (%) |
≤0.02 |
≤0.02 |
≤0.02 |
|
Full shade |
|
|
|
|
Tint shade (1:4TiO2) |
|
|
|
Product Features:
Cobalt Aluminate blue pigment stands out with its distinct red light blue, offering a bright and vivid color.
Cobalt Blue Pigment performs quite well in hiding power, light resistance, weather resistance, heat resistance stability, resistance to acids, alkalis, and various solvents. Also, easy to disperse, no penetration and migration. It is an internationally recognized non-toxic and environmentally friendly pigment. Cobalt blue powder also has a special far-infrared reflection function and is an ideal military camouflage coating.
Applications:
Applications
Coatings
Plastics
/Masterbatch
Ink
2805
●
○
○
2806
●
○
○
2810
●
○
○
Code
● Highly Recommended ○ Suitable
Cobalt Aluminate blue pigments are Renowned for its exceptional stability, cobalt blue powder have traditionally been employed as a coloring agent in ceramics (notably Chinese porcelain), jewelry, and paint. The silica-based cobalt pigment "smalt" is used to tint transparent glass.
Additionally, Cobalt Blue Pigment offers unique far-infrared protection, making it an excellent choice for military camouflage coatings.
Cobalt Aluminate blue pigment for Coatings (Provides excellent resistance to sun, weather, UV, and high-temperature):
-General industrial, fluorocarbon, coil, powder, and automotive coatings
-Non-stick coatings for various applications
-Architectural, exterior wall, machinery, aerospace, marine, military, road marking, and rock mural coatings
-Cobalt Blue Pigment is also suitable for both oil-based and water-based paints
Cobalt Aluminate blue pigment for Plastics:
-Used in engineering, specialty, and standard plastics
-Cobalt Aluminate Blue Pigment can be compatible with master-batches
Other Uses of Cobalt Aluminate blue pigment:
-Cobalt Aluminates Blue Pigment is also used for Colored inks, tinted glass, and Daily enamels
-Ideal for ceramic building materials such as over glaze and under glaze
-Enhances colored sand and stone
FAQ:
1. How to make Cobalt Aluminate Blue Pigment?
Cobalt Aluminate Blue Pigment is produced by heating cobalt(II) oxide with aluminium(III) oxide (alumina) at a temperature of 1200 ℃. This Cobalt Blue Pigment, known chemically as cobalt(II) oxide-aluminium oxide or cobalt(II) aluminate (CoAl2O4), is lighter and less vivid than Prussian blue, an iron-cyanide based pigment.
2. Do you have any Certification for Cobalt blue pigment?
Cobalt blue pigment has been tested by SGS, complies with EU ROHS, EN71-3, ASTM F963, and Japanese SONY standards
So you can find that Cobalt Blue Pigment is suitable for environmentally sensitive applications like food packaging, children's toys, and household tableware.
