Light Calcium Carbonate
Product Features：
Environmental friendly.
Superfine. (particle size distribution is narrow and even)
Clean. (less impurities)
High purity. (more than 98% CaC03 content)
High whiteness.
Excellent dispersibility.
Index | TLZ-CC1250 | TLZ-CC2500 |
CaCO₃content ≥% | 98-99 | 98-99 |
Particle Size D50 μm | 5-7 | 18-2.5 |
325 mesh Residue | 0 | 0 |
Whiteness % | 95 | 97 |
Specific Gravity | 2.7 | 2.7 |
Postulate Specific Gravity | 11 | 0.65 |
Moisture ≤% | 0.15 | 0.15 |
PH | 7.5+1.0 | 7.5±1.0 |
Oil Absorption | 15-20 g/cm³ | 18-25 g/cm³ |
Sediment Volume 30 min (ml) | 78 | 78 |
Sediment Volume 60 min (ml) | 74 | 74 |
Light Calcium Carbonate is one of the most widely used industrial additives in modern manufacturing. From plastics and paints to pharmaceuticals and food, Light Calcium Carbonate offers exceptional performance as a filler, reinforcing agent, and functional mineral. Thanks to its low density, fine particle size, and high chemical purity, this material is essential for industries seeking to improve product performance while reducing production costs.
In this comprehensive guide, we’ll explore what Light Calcium Carbonate is, how it's produced, its major applications, and the benefits it brings to various sectors.
What Is Light Calcium Carbonate?
Light Calcium Carbonate, also known as precipitated calcium carbonate (PCC), is a white, odorless, tasteless powder produced by the chemical reaction of calcium hydroxide with carbon dioxide gas. Unlike ground calcium carbonate (GCC), which is derived from natural limestone, Light Calcium Carbonate is synthesized to have specific particle size, shape, and surface properties.
Due to its high purity and fine particle size, Light Calcium Carbonate is often preferred in industries that require consistency, whiteness, and dispersion quality.
How Is Light Calcium Carbonate Produced?
The production of Light Calcium Carbonate involves a controlled chemical reaction:
Calcination: High-purity limestone is heated to produce quicklime (CaO).
Hydration: Quicklime is mixed with water to form calcium hydroxide (Ca(OH)₂).
Carbonation: Carbon dioxide is bubbled through the calcium hydroxide solution, precipitating Light Calcium Carbonate.
Filtration and Drying: The resulting slurry is filtered, washed, and dried to obtain a fine powder.
This synthetic process allows manufacturers to control particle size, surface area, brightness, and other key properties, making Light Calcium Carbonate ideal for precision applications.
Benefits of Using Light Calcium Carbonate
1. High Brightness and Whiteness
Thanks to its ultra-fine particles and purity, Light Calcium Carbonate enhances the brightness and whiteness of final products, making it a valuable additive for paints, plastics, and paper.
2. Excellent Dispersion
Light Calcium Carbonate disperses easily in polymers and liquids, improving processing efficiency and ensuring uniform appearance and performance in final products.
3. Cost-Effective Filler
As a low-cost mineral filler, Light Calcium Carbonate reduces the consumption of more expensive raw materials, helping manufacturers lower costs without sacrificing product quality.
4. Improved Mechanical Properties
In rubber and plastic applications, Light Calcium Carbonate enhances tensile strength, impact resistance, and dimensional stability.
5. pH Control and Buffering
In pharmaceuticals and food applications, Light Calcium Carbonate acts as an effective pH buffer, ensuring chemical stability and safety.
Key Applications of Light Calcium Carbonate
Light Calcium Carbonate is used in a broad range of industries due to its versatile chemical and physical properties:
- Plastics and Polymers
In PVC, polyethylene, and polypropylene, Light Calcium Carbonate improves processing, enhances rigidity, and reduces shrinkage. It also acts as a nucleating agent in injection molding.
- Paints and Coatings
As an extender pigment, Light Calcium Carbonate improves opacity, surface gloss, and paint flow while lowering production costs.
- Rubber Industry
Used in tires, hoses, and shoe soles, Light Calcium Carbonate enhances elasticity, durability, and thermal stability.
- Paper Industry
In coated and uncoated paper, Light Calcium Carbonate increases brightness, printability, and bulk while reducing ink usage.
- Pharmaceuticals
Used as a calcium supplement and tablet filler, Light Calcium Carbonate complies with pharmacopeia standards for purity and safety.
- Food and Beverage
Food-grade Light Calcium Carbonate serves as a calcium fortifier, anti-caking agent, and acidity regulator in dairy, baking, and beverages.
Physical and Chemical Properties of Light Calcium Carbonate
| Property | Value Range |
|---|---|
| Chemical Formula | CaCO₃ |
| Appearance | White, fine powder |
| Purity | > 98% |
| Particle Size (D50) | 0.5 to 3 microns |
| Brightness (ISO) | ≥ 95% |
| Specific Gravity | ~2.7 g/cm³ |
| Oil Absorption | 20–30 g/100g |
| pH (10% slurry) | 8.5–10.0 |
Choosing the Right Grade of Light Calcium Carbonate
To maximize performance, select a Light Calcium Carbonate grade based on:
Particle size: Finer particles are ideal for high-gloss and precision applications.
Surface treatment: Coated grades improve compatibility with polymers and reduce moisture absorption.
Brightness and purity: Critical for optical applications like paints and paper.
Partner with a reputable supplier who provides technical specifications, consistent quality, and support tailored to your application.
Conclusion: Light Calcium Carbonate—A Strategic Additive for Quality and Efficiency
As industries evolve toward more sustainable, high-performance materials, Light Calcium Carbonate stands out as a strategic choice. Whether you're formulating advanced polymers, manufacturing eco-friendly coatings, or developing pharmaceutical solutions, Light Calcium Carbonate offers the ideal combination of cost-effectiveness, functionality, and versatility.
By integrating Light Calcium Carbonate into your formulations, you not only enhance the physical and aesthetic properties of your products but also gain a competitive edge in performance and profitability.
