Ground Calcium Carbonate
Chemical name: Ground Calcium Carbonate
Molecular formula: CaCO3
Properties: Odorless and tasteless white powder, stable in air, hardly absorb water, almost insoluble in water and alcohol, slightly soluble in water with smmonium salt and carbon dioxide, soluble in acidic aqueous water.
Use: Ground calcium carbonate is mainly used as filler, and is also used in plastics, coatings, rubber, chemical industry concerned with products for daily use, and building industry, etc.
Packing: Composite plastic woven bag; 25kg/bag.
Index Name |
Product Specification |
GR-400 |
GR-800 |
GR-1250 |
GR-1500 |
GR-2000 |
GR-2500 |
GR-3000 |
| Calcium carbonate (CaCO3)% ≥ |
98 |
98 |
98 |
98.8 |
98.8 |
98.8 |
98.8 |
| Ferroso-ferric oxide (Fe2O3)% ≤ |
0.02 |
0.02 |
0.02 |
0.02 |
0.02 |
0.02 |
0.02 |
| Silicon dioxide (SiO2)% ≤ |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
| Grain size |
D50(μm) |
13 |
6 |
4 |
3 |
2.5 |
1.5 |
1 |
| D97(μm) |
45 |
16 |
10 |
8 |
6 |
4.5 |
4 |
| 325mesh residue% |
2 |
0.15 |
0.05 |
0.001 |
-- |
-- |
-- |
| Brightness% ≥ |
95 |
95 |
95 |
95 |
96 |
96 |
96 |
| Water content% ≤ |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
| Loss on ignition (LOS)% |
43.5 |
43.5 |
43.5 |
43.5 |
43.5 |
43.5 |
43.5 |
| True specific gravity |
2.7 |
2.7 |
2.7 |
2.7 |
2.7 |
2.7 |
2.7 |
| Apparent specific gravity |
0.8~1.35 |
| PH value |
9±0.5 |
|
