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ProductsSuperfine light calcium carbonate
Chemical name: Calcium carbonate
Molecular Formula: CaCO3
Properties: fine particle size of light calcium carbonate, white powder, odorless, average Particle size in the range of 0.1-0.3μm, large specific surface area.
Ultra-fine (active) light calcium carbonate is finer and more uniform than ordinary light calcium carbonate. It is often used as additive of emulsion and pulp. Ultra-fine active light calcium carbonate is widely used in rubber resin, coating, ink, cosmetics and other industries.
Packing: Composite plastic woven bag, 25KG/bag
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Index Item |
HG/T 2776-2010 |
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Fine precipitated calcium carbonate |
Fine active precipitated calcium carbonate |
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Top grade |
First grade |
Top grade |
First grade |
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Calcium carbonate (CaCO3) % ≥ |
98 |
97 |
95.0 |
94.0 |
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PH value |
8-10 |
8-10 |
8-10 |
8-10 |
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Volatile content at 105°C % ≤ |
0.4 |
0.6 |
0.3 |
0.5 |
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Content of insoluble substances in hydrochloric acid % ≤ |
0.1 |
0.2 |
0.1 |
0.2 |
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Iron (F) % ≤ |
0.05 |
0.08 |
0.05 |
0.08 |
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Whiteness ≥ |
94 |
92 |
94 |
92 |
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Oil absorption value/(g/100g) ≤ |
100 |
70 |
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Black spot/(piece/g) ≤ |
5 |
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Bulk density (g/cm3) |
0.3-0.5 |
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Specific surface area/(m2/g) ≥ |
12 |
6 |
12 |
6 |
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Average Particle size |
0.1-1.0 |
1.0-3.0 |
0.1-1.0 |
1.0-3.0 |
