Datong Coal Industrial Jinyu kaolin Chemical Co., LTD

GB-K90 kaolin is produced through water washing, grind, classification, press filtration and strong drying. The well controlled processes ensure the product have no coarse particles, so the end user can achieve a high Hegman grind. The product have high brightness, it is applied in paper-making and coating industry.

2. Typical Physical Properties

Item	GB-K90
Brightness(T457)	85%min
Viscosity(500mPas)	65min
Particle Size(-2 micron)	0-2um,82%min
Particle Size(+45 micron)	0.02%max
pH	4
Oil absorbability(g/100g)	30-35
Refractive index	1.6
Dusoersion fallout(%)	0.05max
Density(g/cm³)	2.58
Bulk dinsity(g/cm³)	0.7
Moisture(%)	2%max
Shaper	Powdery
Packing	Plastic bag/Paper packing
Weight	50(+/-1)kg/25(+/-0.5)kg

3. Typical Chemical Properties

	SiO₂(%)	Al₂O₃(%)	Fe₂O₃(%)	lgnition loss(%)
Standard	48max	37min	0.60max	13.5-14.5

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