Calcium carbonate is a chemical compound with the chemical formula CaCO₃. It is a common substance found in rocks as the minerals calcite and aragonite, most notably in chalk and limestone, eggshells, gastropod shells, shellfish skeletons and pearls. Calcium carbonate is classified as a calcium supplement, antacid, and phosphate binder.
Weights:
Packaging Options:
Other weights and packaging options available on request.
| Compound | Typical (%) |
| CaCO3 | >97.0% |
| Ca | >38.8% |
| CaO | >54.3% |
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