Precipitated Calcium Carbonate is widely used by Paint Industries for the manufacturing of Emulsion Paint and Powder Coatings.
With its high whiteness and ideal distribution, Precipitated Calcium Carbonate improves the processability characteristics of paint. Precipitated Calcium Carbonate is an anti setting agent and also an opacifying agent which enhances the gloss and stability characteristics of the paint. Precipitated Calcium Carbonate also works as an anti rust agent. Moreover, to all the above benefits it reduces the cost of the product.
| Chemical Properties | |
|---|---|
| CaCO3 % by Weight | 98.25 ± 0.25 |
| Lead as pb | 10 ppm Max. |
| Copper as Cu | 2 ppm Max. |
| Arsenic as As | 2 ppm Max. |
| Sulphate as SO4 | 0.4% Max. |
| Soluble alkali as Na2O | 0.25% Max. |
| Silica as SiO2 | 0.5% Max. |
| Iron as Fe | 250 ppm Max. |
| Matter insoluble in HCL | 0.5% Max. |
| pH | 9.5 ± 0.5 |
| Phosphate | 20 ppm Max. |
| Chloride as Cl | 20 ppm Max. |
| Magnesium as MgO | 0.5% Max. |
| Flouride as F | 20 ppm Max. |
| Physical Properties | |
|---|---|
| Whiteness | 95 Min. |
| Crystal Structure | Argonite |
| Water Absorption | 80 to 85 ml/100 gm |
| Oil Absorption | 60 to 65 ml/100 gm |
| Loss on Drying at 105o C | 0.5% Max. |
| Specific Gravity | 2.6 to 2.9 |
| Bulk Density | 0.40 to 0.45 gm/ml |
| Average Particle Size | 5 to 7 μm |
| Residue on 300 mess | 0.2% Max. |