Calcium carbonate is also used in water treatment to reduce acidity and to increase alkalinity of naturally acid waters. Drinking water hardness must be above 8.4 odH. Calcium carbonate has a positive effect on lead water pipes, because it forms a protective lead carbonate coating. This prevents lead from dissolving in drinking water, and thereby prevents it from entering the human body.
Specifications
| CaCO3 | >96 |
| Fe203 | 0.1% Max |
| Free Silica | >0.02% |
| MgO | 1 to 1.5% Max |
| Alkali (Water Soluble) | 0.001 |
| Physical Analysis | |
| Color | Super Snow White |
| Specific Gravity | 2.65 |
| Oil Absortion | 32 to 35 gms/cc |
| PH (10% Soluble) | 9 to 9.5 |
| Bulk Density | 0.52 (Loose) |
| 0.85 (50 Tap) | |
| Whiteness on gloss reflect meter Compared with mgcO3 as 100% standard | 97% |
Particle size
| D (0.1) | 0.84 Micron | |
| D (0.5 ) | 3.88 Micron | |
| D (0.9 ) | 11.20 Micron | |
| D (0.97 ) | 15.90 Micron | |
