CAS · 471-34-1
Product Overview
Calcium carbonate is a high-purity a-api supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.
Product Specifications
| Grade: | USP 43 |
|---|---|
| Appearance: | White powder |
| Assay of calcium carbonate: | 98.0%~100.5% |
| Identification: | Conforms |
| Acid-Insoluble Substances: | 0.2% max |
| Barium: | Conforms |
| Arsenic: | 3 ppm max |
| Iron: | 0.1% max |
| Lead: | 3 ppm max |
| Limit of Fluoride: | 50 ppm max |
| Limit of Magnesium and Alkali Salts: | 1.0% max |
| Mercury: | 0.5 ppm max |
| Loss on drying: | 2.0% max |
| Microbial limit: | |
| TAMC: | 1000 cfu/g max |
| TYMC: | 100 cfu/g max |
| Escherichia coli: | Absence (1g) |
| Tap density: | 1.10 g/cm³ |
Applications
1. Pharmaceuticals and Healthcare
● Calcium supplement: Used to treat or prevent calcium deficiency, osteoporosis, rickets, and hypoparathyroidism.
● Antacid: Neutralizes stomach acid to relieve heartburn, acid indigestion, and upset stomach.
● Incorporated into toothpastes as a mild abrasive and calcium source for enamel strengthening.
2. Food and Beverage Industry
● Used as a food additive (E170): Calcium carbonate丨CAS 471-34-1 Acts as a calcium fortifier, acidity regulator, and firming agent in dairy products, baked goods, and soy-based beverages.
● Also used in brewing, wine clarification, and preservation of fruits and vegetables.
3. Construction Materials
● Major component in the production of cement, lime, and concrete.
● Used as a filler in asphalt, plasters, and joint compounds.
● Ground calcium carbonate (GCC) is added to paint, sealants, and adhesives for opacity and reinforcement.
4. Plastic, Paper, and Rubber Industries
● Acts as a filler to improve mechanical strength, whiteness, and cost-efficiency of plastic products.
● In paper manufacturing, calcium carbonate is used as a coating pigment to improve brightness and opacity.
● In rubber, it enhances durability and resilience.
5. Environmental Applications
● Used in flue gas desulfurization to remove sulfur dioxide from industrial emissions.
● Serves as a soil conditioner and pH adjuster in agriculture to neutralize acidic soils.
● Employed in water treatment to stabilize pH and remove impurities.
6. Cosmetics and Personal Care
● Mild abrasive in face scrubs, cleansers, and toothpastes.
● Provides a mattifying effect and acts as a bulking agent in powders and makeup formulations.
Benefits
✅ Rich Source of Calcium
● Provides essential calcium ions for bone health, muscle function, and nerve signaling.
● Widely used in dietary supplements for populations at risk of deficiency (e.g., postmenopausal women, elderly).
✅ Acid Neutralization
● Effectively treats hyperacidity and gastrointestinal discomfort as a fast-acting antacid.
● Has a gentle action suitable for over-the-counter (OTC) use.
✅ Low Cost and Abundant
● Readily available and inexpensive, making it a cost-effective material in many industrial and agricultural applications.
✅ Eco-Friendly
● Biodegradable and non-toxic, making it a sustainable alternative in plastic, paper, and paint industries.
✅ Functional Versatility
● Adds whiteness, bulk, abrasiveness, and alkalinity to products across multiple sectors.
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Conclusion
A concise summary and suitability assessment for this product is available on request. Contact our team to discuss whether it fits your process and quality requirements.