Parameter | Specification |
Product Name | High-Purity Lightweight Calcium Carbonate Powder |
CAS Number | 471-34-1 |
Chemical Formula | CaCO₃ |
Purity | ≥ 98.5% |
Particle Size Distribution | |
- D50 (Median Diameter) | 1-5 µm (adjustable based on request) |
- D90 (90% of particles are smaller than) | ≤ 10µm (adjustable) |
Bulk Density | 0.2-0.5 g/cm³ |
Whiteness | ≥ 92% |
Oil Absorption | 20-35 g/100g |
pH Value | 8.0-10.0 |
Moisture Content | ≤ 0.5% |
Heavy Metal Content | |
- Lead (Pb) | ≤ 10mg/kg |
- Arsenic (As) | ≤ 2mg/kg |
- Mercury (Hg) | ≤ 1mg/kg |
Other Impurities | SiO₂, Al₂O₃, Fe₂O₃ ≤ 0.3% each |
Appearance | White, fine, free-flowing powder |
Applications | |
- Paper Fillers and Coatings | |
- Plastics (PVC, PE, PP, etc.) | |
- Paints and Coatings | |
- Rubber | |
- Adhesives and Sealants | |
- Cosmetics and Personal Care Products | |
Packaging | 25kg plastic-lined paper bags, 500kg/1000kg big bags, or as per customer requirements |
Storage Conditions | Store in a cool, dry, well-ventilated area. Keep away from moisture and heat. |
Shelf Life | 24 months when stored under recommended conditions |
High-Purity Lightweight Calcium Carbonate Powder is a versatile and essential additive widely used across various industries due to its unique properties and high purity levels. Here are some key details about this product:
Composition and Purity:
Composed primarily of calcium carbonate (CaCO₃), it boasts a purity level of ≥98.5%, ensuring minimal impurity levels and consistent performance in various applications.
Particle Size and Morphology:
The powder has a finely controlled particle size distribution, with a median diameter (D50) ranging from 1-5µm, adjustable based on customer requirements. This fine particle size enhances its dispersion and reactivity in different media.
Physical Properties:
It exhibits a high whiteness level (≥92%), contributing to the brightness and opacity of the final products.
The bulk density is between 0.2-0.5 g/cm³, allowing for efficient handling and processing.
The oil absorption capacity is between 20-35 g/100g, making it suitable for use in various formulations.
Chemical Stability:
The powder has a pH value ranging from 8.0-10.0, indicating its neutral to slightly alkaline nature, compatible with a wide range of chemicals and materials.
It contains low levels of heavy metals and other impurities, ensuring safe use in sensitive applications like cosmetics and food packaging.
Applications:
It serves as an excellent filler and reinforcing agent in paper, plastics, paints, rubber, and adhesives, enhancing mechanical properties and reducing costs.
In cosmetics, it provides a matte finish and improves the formulation's stability.
It also finds use in personal care products, such as toothpastes and antiperspirants, due to its gentle abrasive properties.
Packaging and Storage:
The powder is available in 25kg plastic-lined paper bags, 500kg/1000kg big bags, or custom packaging options to suit customer needs.
Store in a cool, dry, well-ventilated area to maintain product quality and extend shelf life.
