Calcium Carbonate (USP Grade)

Properties:
1. Calcium supplements: USP grade calcium carbonate is commonly used as a calcium supplement to supplement the body's calcium needs, especially in situations where calcium intake is insufficient, such as children, the elderly, pregnant women, and lactating women.

2. Antacid preparations: In the pharmaceutical field, calcium carbonate is also used as an antacid to help neutralize excessive stomach acid and alleviate discomfort caused by excessive stomach acid.

3. Food additives: In the food industry, USP grade calcium carbonate can be used as a flour processing agent, leavening agent, and food processing aid, as well as added as a nutritional fortifier to foods such as wheat flour.

4. Direct pressing raw materials: In the production of health foods (such as tablets), USP grade calcium carbonate can be used as a direct pressing raw material to facilitate compression molding during the production process.

5. High purity requirements: USP grade calcium carbonate typically has high purity and extremely low iron content, which makes it suitable for export formulations as it does not cause color reactions when mixed with main drugs containing phenolic hydroxyl groups.

6. Customizability: USP grade calcium carbonate can be customized with different mesh sizes, particle sizes, and bulk densities to meet specific industrial applications according to different needs.

7. Long term stability: USP grade calcium carbonate typically has a longer shelf life, which helps ensure the stability of product quality.


Technical Data

Item	Spec.
Appearance	white powder
Identification A.B.	pass the test
Content as CaCO3	98.0-100.5%
Acid insolubles substances	≤0.2%
Arsenic(As)	≤3ppm
Magnesium & Alkali Salts	≤1%
Lead (as Pb)	≤3ppm
Fluoride	≤0.005%
Mercury	≤0.5ppm
Heavy metal	≤0.002%
Ph	9-10
Iron	≤0.1%
Cadmium	<1ppm
Chloride	≤0.25%
Sulphate	≤0.5%
Barium	Negative
OVI	Pass the test
Loss on drying(200℃ 4h)	≤2%
Free alkali	≤0.05%
Total plate count	≤1000cfu/g
Yeast and mold	≤100cfu/g
E.  Coli	Negative
Salmonella	Negative