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CALCIUM CARBONATE POWDER DD-A25
1. Chemical composition:
- CaC03: 98% min
- Fe2O3: 0.02% max
- MgO: 0.02% max
- SiO2: 0.1% max
- Al2O3: 0.1% max
2. Physical properties:
- Whiteness: 98% min
- Brightness: 96% min
- Moisture: 0.2% max
- Oil absorption: 23.00g/100g CaCO3
- Specific gravity: 2.65 - 2.7g/cm3
- Hardness: 2.7-3 Moh
- Evaporating at 900 degrees C: 42 - 44%
- Evaporating at 105 degrees C: 0.2 - 0.4%
- Acid insoluble: 0.3% max
- pH value: 8 - 9
- Partical size: DD- A15
+ D50 = 3,2 ± 0,5
+ D97 = 15 ± 2,0
(550 mesh )
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