GCC
GCC
Limestone Powder / Calcium carbonate (CaCO3) is a substance widely used for various purposes, for example as a filler and pigment material not only in paper, plastics, rubbers, paints, and inks but also in pharmaceutics, cosmetics, construction materials, and asphalts and as a nutritional supplement in animal foods.
Besides the so-called ground calcium carbonate (GCC), which is milled from natural limestone, precipitated calcium carbonate (PCC) is used in applications where, for example, higher brightness or a narrow particle size distribution is required.
TECHNICAL DATA SHEET
Chemical Properties:
| S. No | Parameter | Value |
|---|---|---|
| 1M | CaCo3 | 98.5% |
| 2 | MgO | 0.80% |
| 3 | SiO2 | 0.30% |
| 4 | Al2O3 | 0.40% |
| 5 | Fe2O3 | 0.05% |
Physical Properties:
| S. No | Parameter | Value |
|---|---|---|
| 1 | Specific Gravity | 98.5% |
| 2 | Loose Density | 0.80% |
| 3 | Moisture | 0.30% |
| 4 | Hardness | 0.40% |
| 5 | Oil Absorption | 0.05% |
| 6 | Brightness | 96% |
| 7 | Whiteness | 96% |
Available Particle Size:
| S. No | Particle Size Distribution | |
|---|---|---|
| 1 | D50 ≤ 1.8 μm D97 = 8±1 μm | 1880 Mesh |
| 2 | D50 ≤ 2.5 μm D97 = 10±1 μm | 1250 Mesh |
| 3 | D50 ≤ 2.5 μm D97 = 10±1 μm | 1100 Mesh |
| 4 | D50 ≤ 3.0 μm D97 = 15±2 μm | 1000 Mesh |
| 5 | D50 ≤ 4.0μm D97 = 20±2 μm | 625 Mesh |
| 6 | D50 ≤ 5.0 μm D97 = 25±2 μm | 600 Mesh |
| 7 | D50 ≤ 6.0 μm D97 = 30±2 μm | 500 Mesh |
| 8 | D50 ≤ 6.5 μm D97 = 35±3 μm | 428 Mesh |
| 9 | D50 ≤ 8.5μm D90 = 45±3 μm | 325 Mesh |