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ProductsGround calcium carbonate
Chemical Name: Ultrafine Ground Calcium Carbonate
Molecular formula: CaCO3
Property: White powder. Wide particle size distribution, high whiteness and low oil absorption value.
Uses: Products are widely used in a variety of high-grade paint, paint, ink, paper and other industries.
Packing: Composite plastic woven bag, 25KG/bag
|
Index Item |
GR-6000 |
GR-5000 |
GR-3500 |
|
CaCO3 %≥ |
98.0 |
98.0 |
98.0 |
|
SiO2 %≤ |
0.3 |
0.3 |
0.3 |
|
Specific surface area cm 3/ g |
20000 |
18000 |
16000 |
|
D50 Particle size μ m |
1.50 |
2.00 |
2.50 |
|
D97 Particle size μ m |
3.0 |
4.0 |
5.0 |
|
Iron Fe content %≤ |
0.02 |
0.02 |
0.02 |
|
True specific gravity t/m3 |
2.7 |
2.7 |
2.7 |
|
Apparent specific gravity t/m3 |
0.50 |
0.60 |
0.70 |
|
Oil absorption ml/100g |
30 |
28 |
26 |
|
Content of insoluble substances in hydrochloric acid %≤ |
0.2 |
0.2 |
0.2 |
|
PH Value > |
8-9 |
8-9.5 |
8-10 |
|
Moisture % ≤ |
0.3 |
0.3 |
0.3 |
|
Whiteness ≥ |
96 |
96 |
95.5 |
