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Calcium Carbonate, heavy (CAS No. 471-34-1), from the supplier Dr. Paul Lohmann® is a fine, white, odorless powder with a high calcium content. This product is known for its consistent quality and tailored specifications. It is widely used across industries including pharmaceuticals, food, and technical applications.
Typical properties include:
| Formula | CaCO3 |
| Molecular weight | 100.1 g/mol |
| CAS No.: | 471-34-1 |
| HS No.: | 25174100 |
| Product number | Product parameter | Storage conditions | Retest period | Additional information |
|---|---|---|---|
| 512006003 |
| Keep well closed, dry and at room temperature.; 36 months | |
| 512006015 |
| Keep well closed, dry and at room temperature.; 36 months | |
| 512006211 |
| Keep well closed, dry and at room temperature.; 36 months | |
| 512006020 |
| Keep well closed, dry and at room temperature.; 24 months | |
| 512006210 |
| Keep well closed, dry and at room temperature.; 24 months | |
| 512006212 |
| ; 36 months |
++ > 100 g/l | + 10 - 100 g/l | − 1 - 10 g/l | −− < 1 g/l
The solubility specified here was measured in water. The solubility is influenced by many factors in the application.
Choosing our Calcium Carbonate, heavy ensures:
Dr. Paul Lohmann operates under globally recognized quality frameworks:
As a leading manufacturer and supplier of specialty Mineral Salts, Dr. Paul Lohmann brings over 135 years of expertise in high-purity materials for demanding applications. Our Calcium Carbonate, heavy is available in customized particle sizes and complies with major pharmacopoeias (Ph. Eur., USP, FCC), ensuring compatibility with your formulation and regulatory needs.
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Contact Dr. Paul Lohmann® today for technical support, pricing, or sample requests.
Calcium carbonate heavy is widely used in pharmaceutical formulations as an excipient. Thanks to its excellent compressibility and good flow properties, it serves as a reliable filler and diluent in solid dosage forms such as tablets and capsules. Its buffering capacity also supports pH stabilization in various formulations. Beyond pharmaceuticals, calcium carbonate heavy is frequently applied in nutritional supplements as a source of calcium, offering both high purity and consistent quality to ensure safe and effective products.
Calcium carbonate is widely used in the food industry as a source of calcium and is also approved as a colorant under the E-number E170. It is commonly used in a variety of fortified foods, including plant-based milk alternatives, breakfast cereals, and meal replacement products as well as into infant formulas. Additionally, calcium carbonate marketed under the brand name LomaWhite L06 is indicated for use as a whitening agent in food applications, providing an opaque and clean appearance to products such as chewing gum and confectionery.
Bioplastics & Engineering Polymers: Boost the performance of biopolymers with high-purity micronized Calcium Carbonate
Micronized Calcium Carbonate is a functional mineral filler used in bioplastics and engineering polymers such as PLA, PBS, PP, and PE. It enhances both mechanical performance and processability, making it ideal for sustainable, high-performance materials.
Key Benefits:
Improves rigidity, strength, and dimensional stability in bio-based polymers.
Surface-treated grades ensure excellent dispersion and prevent clumping or agglomeration during extrusion or injection molding.
Bright white appearance and ultra-low impurity levels help avoid discoloration of final parts or films.
Tailored particle morphology supports nucleation behavior in semi-crystalline polymers, especially PLA, improving cycle times and thermal resistance.
Ceramics, Frits & Technical Glass: Achieve perfect melt clarity and color consistency with low-iron synthetic Calcium Carbonate grades.
Available in micronized and granulated forms, our Calcium Carbonate offers these Key Benefits:
Ideal for clear, white, or light-colored ceramic and glass products — minimal discoloration or impurity-related defects.
Controlled CO₂ release supports predictable sintering and optimal firing behavior in kilns or furnaces.
Maintains material integrity at elevated temperatures; supports consistent product structure and surface finish.
Reduces batch-to-batch variation in frit or glaze formulations, improving final product uniformity.
Granulated CaCO₃ ensures dust-free handling, optimized flow, and accurate metering in automated frit production systems.
| Product | Product number | |
|---|---|---|
| Calcium Carbonate DC 90S | 512006004 | |
| Calcium Carbonate DC 95S | 512006005 | |
| Calcium Carbonate DC 95M | 512006006 | |
| Calcium Carbonate DC 97P | 512006008 | |
| Calcium Carbonate DC 90M | 512006009 | |
| Calcium Carbonate DC 97GA | 512006018 | |
| Calcium Carbonate, micronized DC 97GA | 512006019 | |
| Calcium Carbonate DC 95GA | 512006021 | |
The information given on this Website corresponds to our current knowledge. We warrant in the frame of our General Terms and Conditions of Sale that our products are manufactured in accordance with the specifications. However, we disclaim any liability with regard to the suitability of our products for a particular purpose or application or their compatibility with other substances. Tests have to be performed by the customer who also bears the risk in this respect. Nothing herein shall be construed as a recommendation to use our products in conflict with third parties' rights.
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