| Customization: | Available |
|---|---|
| CAS No.: | 471-34-1 |
| Formula: | CaCO3 |
|
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Calcium carbonate is a chemical compound with the chemical formula CaCO3. It is a common substance found in rock in all parts of the world, and is the main component of shells of marine organisms, snails, pearls, and eggshells. Calcium carbonate is the active ingredient in agricultural lime, and is usually the principal cause of hard water. It is commonly used medicinally as a calcium supplement or as an antacid, but excessive consumption can be hazardous.
|
Item |
Standard |
Test results |
|
CaCO3 |
98.0%-100.5% |
98.5% |
|
HCl insoluble |
≤0.20% |
0.15% |
|
Free alkali |
Pass test |
Pass test |
|
Alkali metal and magnesium |
≤1.0% |
0.85% |
|
Ba |
≤0.030% |
0.02% |
|
As |
≤0.0003% |
0.00025% |
|
Loss on drying |
≤2.0% |
1.45% |
|
F |
≤0.005% |
0.0035% |
|
Pb |
≤0.0003% |
0.00023% |
|
Hg |
≤0.0001% |
<0.0001% |
|
Cd |
≤0.0002% |
0.0001% |
Used for flour treatment agent, transport agent, stabilizer, yeast nutrients, mineral nutrition enhancer
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