Specification of Calcium Carbonate
Physical Properties Values
Dry brightness ( Against 100% MgO ) : 85 – 87
Specific Gravity : 2.7
pH Value of 10% aqueous suspension : 9 – 9.5
Packed Bulk Density : 1100 Kg/m³
Oil Absorption : 16-18 g/100g
Moisture : 0.2% max.
Chemical Properties
Calcium Carbonate : 97.50% min
Silica : 2.0% max
Iron : 0.1% max
Alumina : 0.1% max
Maganese : 500 ppm max
Lead : 2 ppm max
Copper : 3 ppm max
Loss on Ignition : 43.42%
Insoluble in Hydrochloric Acid : 2.5% max
Particle Size Analysis ( Mesh Retention )
Retention % (325 Mesh ) : 2.0% max
