Calcium carbonate
Molecular Structure:
Molecular Formula: CaCO3
Molecular Weight: 100.0892
Packaging: 25kg/Bag
Characters: Odorless, tasteless white powder or colorless crystal. Melting point 825 °C, relative density (water = 1) 2.70-2.95, do not dissolve in water, soluble in acid.
| Calcium carbonate | Pharmaceutical(USP) | Food Grade(GB) |
| Assay % | ≥98.5 | ≥98.0 |
| Hydrochloric acid insoluble % | ≤0.2 | ≤0.2 |
| Heavy Metals % | ≤0.002 | ≤0.002 |
| Magnesium and potassium % | ≤1.0 | ≤1.0 |
| Barium % | No | ≤0.03 |
| As % | ≤0.0003 | ≤0.0003 |
| Loss on drying % | ≤2.0 | ≤2.0 |
| Pb % | ≤0.0003 | / |
| Fe % | ≤0.04 | / |
| Fluoride % | ≤0.005 | / |
