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- Superfine Light calcium carbonate
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- Superfine Active Heavy Silver carbonate
- Wet grinding calcium carbonate
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Chemical name: Calcium carbonate
Molecular formula: CaCO3
Properties: light Calcium carbonate with small particle size, white powder, odorless, tasteless, Average size is 0.1-0.3 u m, big Specific surface area.
Uses: The Particle size of Superfine light Calcium carbonate are more fine & uniform than ordinary light Calcium carbonate, commonly used as the additive of emulsion and pulp; Superfine Active light Calcium carbonate now is widely used in rubber, resin, paint, ink, cosmetic industry, etc..
Packing: Composite plastic woven bag, 25KG/bag
| Index Item | HG/T 2776-2010 | |||
| Industrial microfine Precipitated Calcium carbonate | Industrial microfine active Precipitated Calcium carbonate | |||
| Top grade | First grade | Top grade | First grade | |
| Calcium carbonate(CaCO3) % ≥ | 98 | 97 | 95.0 | 94.0 |
| PH value | 8-10 | 8-10 | 8-10 | 8-10 |
| Volatile below 105°C % ≤ | 0.4 | 0.6 | 0.3 | 0.5 |
| Insoluble matter in hydrochloric acid % ≤ | 0.1 | 0.2 | 0.1 | 0.2 |
| Fe % ≤ | 0.05 | 0.08 | 0.05 | 0.08 |
| Whiteness ≥ | 94 | 92 | 94 | 92 |
| Oil absorption /(g/100g) ≤ | 100 | 70 | ||
| Black spots/(p/g) ≤ | 5 | |||
| Bulk density (g/cm3) | 0.3-0.5 | |||
| Specific surface area /(m2/g) ≥ | 12 | 6 | 12 | 6 |
| Average size | 0.1-1.0 | 1.0-3.0 | 0.1-1.0 | 1.0-3.0 |
