| Precipitated Calcium Carbonate |
Recommended Selection for multiple
applications in Plastics Industries
1. As a filler in rigid and plasticized PVC to improve
impact strength.
2. As a filler in PVC footwear, wire and cable
compounds/cables to improve surface gloss and other physical properties.
3. As a filler in leather-cloth/ sheetings. |
| Common Chemical Analysis Data sheet |
| Colour |
Bright White |
| Solution in Hydrochloric Acid 5 N |
Clear |
| Soluble Alkali(as Na2O) as per IS:918-1968 |
Less than 0.2% |
| pH |
9.8±0.5 |
| Iron, Fe-max. |
0.01% |
| Manganese, Mn-max. |
0.003% |
| Fluoride,F,-max. |
0.05% |
| Phosphate, PO4-max. |
0.07% |
| Sulphate, SO4 |
0.25% |
| Silica,SiO2-max. |
0.075% |
| Aluminium, Iron, Phosphates and matter insoluble in
Hydrochloric Acid as per IS:918-1968-max. |
0.5% |
| Magnesia,MgO-max. |
0.5% |
| Lead, Pb-max |
10 p.p.m. |
| Copper, Cu-max. |
5 p.p.m. |
| Arsenic, As-max. |
2 p.p.m. |
| Chloride,Cl |
Trace |
| Calcium carbonate, CaCO3-min. (Test method
as in IS:918-1968) |
98.5% |
| Specific gravity |
2.65 to 2.8 |
| Loss on drying at 105ºC(%) |
0.5 to 0.8 |
| All percentages on weight basis. |
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