Product Advantages
- 97.2% Calcium Carbonate Content-Contains 97.2% CaCO₃ on a dry basis, providing a clearly defined mineral composition for industrial formulations.
- High Whiteness-Features a whiteness value exceeding 94%, making it a potential choice for applications requiring white or light-colored mineral fillers.
- 325 Mesh Specification-Available in a specified 325 mesh grade, allowing manufacturers to evaluate its suitability for different processing and formulation requirements.
- Low Iron Content-Contains only 0.02% iron (Fe) and 0.0035% manganese, providing defined trace-metal specifications for quality evaluation.
- Defined Oil Absorption and pH-Features an oil absorption value of 18–22 and a pH range of 8–10, providing useful reference parameters for formulation selection.
- Low Sieve Residue-Features a sieve residue of ≤0.01%, providing an additional technical parameter for evaluating powder fineness and quality.
Technical Specification
| Parameter | Specification |
|---|---|
| Appearance | Powder |
| Color | White |
| Odor | Odorless |
| Component Content | |
| Calcium Carbonate | 97.2% |
| Silicon Dioxide | 0.43% |
| Iron | 0.02% |
| Manganese | 0.0035% |
| pH | 8-10 |
| Calcium Carbonate (CaCO₃) Content (on dry basis) | 97.2% |
| Fe | 0.02% |
| Oil Absorption Value | 18-22 |
| Residue on Sieve | ≤0.01% |
| Hiding Power | ≥0.80 |
| Whiteness | >94% |
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Product Applications
Heavy Calcium Carbonate product is mainly used in the manufacturing of paper, rubber, paints, coatings, pharmaceuticals, cosmetics and other products
Paper
Rubber
Paints
Coatings
Coatings
Pharmaceuticals
Cosmetics
Other Products
Solubility:
Calcium Stearate is insoluble in water, alcohol and ether, but soluble in benzene, acids or common solvents when hot.
Dosage Guideline:
For best results, the recommended dosage should be optimized based on your raw materials and target performance.
Need custom formulations or comparative testing?
Contact BOTAI’s technical team for customized formulation support and performance consultation.
Contact Botai R&D Team
Packaging & Delivery
- 20kg or 25kg bags, 600kgs per pallet.
- Jumbo bag or on request.
- Minimum Order Quantity (MOQ): 3 metric tons.
- Typical lead time: 7–15 days after order confirmation
- Trade terms: FOB / CIF / DDP under Incoterms® 2020
Storage and Shelf life
- Store in a ambient temperature, dry and cool place.
- At least 12 months
- For storage period over shelf life, quality confirmation tests should be taken before use
Safety & Compliance
Heavy Calcium Carbonate is safe, non-toxic, and environmentally friendly. It complies with ISO 9001 and EU REACH standards.
For detailed handling and safety information, refer to the MSDS.
Email:
[email protected]About Henan Botai Chemical Building Materials Co., Ltd.
Established in 2004, Botai Chemical is a certified manufacturer specializing in Redispersible Polymer Powder, Cellulose Ethers (HPMC/HEMC/HEC), Calcium Formate, and Superplasticizers (SMF/PCE). Our products are widely used in dry-mix mortars, paints, oil drilling, feed, and detergent applications.
As a member of China’s Building Materials and Ceramic Industry Associations, Botai is actively involved in R&D and innovation for tile adhesive and repair materials. We operate two advanced R&D centers and hold over 25 patents and 20 registered trademarks.
With ISO 9001, EU REACH, HALAL, and FAMI-QS certifications, Botai ensures consistent quality and sustainable manufacturing. Our annual capacity exceeds100,000 tons across VINNATE®, VAMCELL®, BOMCELL®, THYLOCELL®, FORCA®, and DEMACSA® product lines.
Our Certificate
Customer Case
Why Choose Us?
Factory established in 2004, backed by 20+ years of manufacturing expertise and over 60,000 m² of modern production facilities
Trusted by customers in 100+ countries and regions, with stable export supply and responsive service
One of China’s leading manufacturers of construction chemical additives, with a total annual capacity exceeding 100,000 tons
Two advanced R&D centers with full in-house laboratories and patented formulation capabilities
Certified quality and production systems: ISO 9001, EU REACH, HALAL, FAMI-QS
25+ patented technologies and 20+ registered trademarks, including VINNATE®, VAMCELL®, BOMCELL®, THYLOCELL® and more
Dedicated QC management and global technical support teams ensuring fast response and reliable service
Strong supply stability with long-term raw material partnerships and automated production lines, ensuring consistent quality and on-time delivery
FAQ
Yes, we offer 200–500 g samples for testing with TDS/SDS.
Yes, we customize grades based on adhesion strength, open time, and workability requirements.
Pre-production sample testing is always conducted before mass production to ensure consistency and compliance.
Final inspection before shipment is strictly implemented to verify product quality, packaging, and labeling accuracy.
All production processes are managed under ISO 9001 quality management system to maintain stable quality performance.
Heavy Calcium Carbonate (325 Mesh) is a white, odorless powder containing 97.2% calcium carbonate (CaCO₃). It is widely used in various industrial manufacturing applications.
Heavy Calcium Carbonate is mainly used in the manufacturing of paper, rubber, paints, coatings, pharmaceuticals, cosmetics, and other products.
Heavy Calcium Carbonate should be stored at ambient temperature in a cool, dry place to maintain its quality during storage.
