Pigment Blue 28

Properties:
1. Cobalt blue is a deep blue compound.
2. It has good heat and light resistance, maintaining its color stability at high temperatures.
3. It is soluble in acids but insoluble in water and alkalis.
Uses:
1. Cobalt blue is widely used in the ceramics, glass, and glaze industries.
2. Because it maintains color stability at high temperatures, it is often used for the decoration and painting of porcelain.
3. In glass manufacturing, cobalt blue is also used as a colorant.

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Description

Specification

Item	Value
Model	PB28
Composition	Co-Al-O
Specific Gravity	4.30(±0.1)
Oil Absorption	18.0 g/100g
Residue on Sieve (350 mesh)	<0.1%
Average Particle Size	1.5μm
pH Value	7.08.0
Heat Resistance	>1000°C
Light Fastness	>8
Weather Fastness	>8
Moisture Content	<0.5%

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Pigment Blue 28

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