Food Additives and Pharmacopoeial Use
High-purity limestone is used as raw materials.
This product is conforming to Japanese pharmacopoeia and can be used safely for a pharmaceutical product.
[ Generic name ]
| Japanese name | 沈降炭酸カルシウム |
|---|---|
| English name | Precipitated Calcium Carbonate |
[ Purity test ]
(Standard value)
| Acid-insoluble matter | not more than 10mg /5g |
|---|---|
| Heavy metal | not more than 20ppm |
| Barium | No green color appears |
| Mg or alkali metal | not more than 5mg/1g |
| Arsenic | not more than 5ppm |
| Loss on drying | not more than 1% |
| Content | not less than 98.5% |
Precipitated Calcium Carbonate occurs as a white, fine crystalline powder. It is odorless and tasteless. It is practically insoluble in water, but its solubility in water is increased in the presence of carbon dioxide. It is practically insoluble in ethanol (95) and in diethyl ether. It dissolves with effervescence in dilute acetic acid, in dilute hydrochloric acid and in dilute nitric acid.
