| CHEMICAL & PHYSICAL SPECIFICATIONS | ||||||
| PROPERTIES | GRADE | |||||
| Hical-D | Super-D | Super-NP | Super-G | Super-H | Super-CU | |
| Calcium Carbonate as CaCO3 (min.) | 97% | 98% | 97% | 96% | 97% | 98% |
| Magnesium as MgO (max.) | 0.5% | 0.3% | 0.5% | 0.5% | 0.5% | 0.3% |
| Iron as Fe2 O3 (max.) | 0.2% | 0.2% | 0.2% | 0.2% | 0.2% | 0.2% |
| Soluble Alkalinity as Na2O (max.) | 0.5% | 0.2% | 0.5% | 0.5% | 0.5% | 0.2% |
| pH | 9.5-10.5 | 9.5-10.5 | 9.5-10.5 | 9.5-10.5 | 9.5-10.5 | 9.5-10.5 |
| Bulk Density (gm/ml) | 0.34-0.40 | 0.40-0.46 | 0.43-0.48 | 0.45-0.50 | 0.62-0.70 | 0.42-0.47 |
| Whiteness (min.) | 97% | 97% | 96% | 96% | 97% | 97% |
| Moisture (max.) | 0.5% | 0.5% | 0.5% | 0.5% | 0.5% | 0.5% |
| Solution in 5N HCl | Clear | Clear | Clear | Clear | Clear | Clear |
| Fineness Residue (Passing through 325 Mesh/45 Micron) | 99.9 | 99.9 | 99.9 | 99.9 | 99.9 | 99.9 |
| Oil Absorption (ml/100gm) | 60-65 | 55-60 | 50-55 | 50-55 | 45-50 | 55-60 |
| CHEMICAL ANALYSIS | |
| Calcium Carbonate as CaCO3 (min.) | 98.5% |
| Magnesium as MgO3 (max.) | 1.0% |
| Iron as Fe2O3 (max.) | 0.02% |
| Silica as SiO2 (max.) | 0.2% |
| HCL Acid Insoluble (max.) | 0.5% |
| pH | 9.5-10.5 |
| PHYSICAL ANALYSIS | |||
| PROPERTIES | GRADE | ||
| CT-707 | CT-717 | CT-727 | |
| Brightness | 97% | 98% | 97% |
| Fineness-Residue on 45 µm (325 mesh) (max.) | 0.5% | 0.3% | 0.5% |
| Loss on Drying at 105°C ±5° (max.) | 0.5% | 0.5% | 0.5% |
| Specific Gravity (max.) | 2.7 | 2.7 | 2.7 |
| Bulk Density (gm/ml) | 0.58-0.65 | 0.60-0.65 | 0.60-0.65 |
| D.O.P Absorption (gm/100gm) | 40-45 | 40-45 | 45-50 |
| Average Particle Size d50 (µm) | 3-4 | 3-4 | 3-4 |
| Average Particle Size Top cut d98 (µm) | 14 | 14 | 14 |
| Coating (%max) | 1.5-2.0 Stearate | 2.5-3.0 Stearate | 0.7-1.0 Titanate |
| CHEMICAL & PHYSICAL SPECIFICATIONS | ||||||
| PROPERTIES | GRADE | |||||
| SW-15 | BM-22 | BM-32 | BM-62 | |||
| Calcium Carbonate as CaCO3 (±1) (min.) | 90% | 92% | 92% | 94% | ||
| Magnesium as MgO (±.5) (max.) | 8% | 6% | 6% | 4% | ||
| Iron as Fe2 O3 (max.) | 0.2% | 0.2% | 0.2% | 0.2% | ||
| Silica as SiO2 (max.) | 2-3% | 1-2% | 1-2% | 1% | ||
| Whiteness (min.) | 94% | 95% | 96% | 96.5% | ||
| Moisture (max.) | 0.5% | 0.5% | 0.5% | 0.5% | ||
| Oil Absorption (ml/100gm) | 19-20 | 20-21 | 20-21 | 20-21 | ||
| Specific Gravity | 2.7 | 2.7 | 2.7 | 2.7 | ||
| d-50 [Average particle size] (±0.5µm) | 5.0 | 2.6 | 2.6 | 2.6 | ||
| d-97 [Top cut] (± 1µm) | 16 | 12 | 12 | 12 | ||
| CHEMICAL & PHYSICAL SPECIFICATIONS | ||||||
| PROPERTIES | GRADE | |||||
| BM-23 | BM-68 | UN-2T | ||||
| Calcium Carbonate as CaCO3 (±2) (min.) | 90% | 94% | 58% | |||
| Magnesium as MgO (±.1) (max.) | 8% | 4% | 22% | |||
| Iron as Fe2 O3 (max.) | 0.2% | 0.2% | 0.40% | |||
| Silica as SiO2 (max.) | 2-3% | 1% | 1% | |||
| Whiteness (%) | 93-94 | 95-96 | 96.5 | |||
| Moisture (max.) | 0.3% | 0.3% | 0.3% | |||
| Oil Absorption (ml/100gm) | 15-16 | 16-18 | 14-16 | |||
| Specific Gravity | 2.7 | 2.7 | 2.7 | |||
| d-50 [Average particle size] (±0.5µm) | 5.0 | 2.6 | 3 | |||
| d-97 [Top cut] (± 1µm) | 16 | 12 | 12 | |||
| Coating % | 1.1 – 1.25 | 1.1 – 1.25 | 1 | |||