Heavy Calcium Carbonate(Dry grinding)
Item |
Index |
CaCO3 |
≥98.0% |
Volatile under 105°C |
≤0.2% |
Hydrochloric acid insoluble |
≤0.3% |
PH value (100g/L suspending liquid) |
≥8.5-10.0 |
Whiteness |
≥93.0 |
Particle size |
≤on request of user |
Uses: Used as fillers for paper making, boards, rubbers, plastics, etc. Also be used to make paint, coating, printing ink, frit, etc.
Packing: 25kg inner-coated plastic woven bag or 1000kg big bag.
Heavy Calcium Carbonate, Paper Making Grade (wet grinding)
Item\Index |
Base Coating |
Surface Coating |
slurry |
filtered cake |
powder |
slurry |
filtered cake |
powder |
CaCO3, % ≥ |
98.0 |
98.0 |
98.0 |
98.0 |
98.0 |
98.0 |
-2μm content, % ≤ |
60.0 |
60.0 |
60.0 |
90.0 |
90.0 |
90.0 |
Hydrochloric acid insoluble, % ≤ |
0.30 |
0.30 |
0.30 |
0.20 |
0.20 |
0.20 |
Whiteness ≥ |
93.0 |
93.0 |
93.0 |
93.0 |
93.0 |
93.0 |
Moisture, % ≤ |
30.0 |
25.0 |
0.5 |
30.0 |
25.0 |
0.5 |
PH value |
8.5-10.0 |
8.5-10.0 |
8.5-10.0 |
8.5-10.0 |
8.5-10.0 |
8.5-10.0 |
Residue on 45μm screen, % ≤ |
0.002 |
0.002 |
0.02 |
0.001 |
0.001 |
0.01 |
Stickiness, CP ≤ |
200 |
/ |
/ |
300 |
/ |
/ |
Remark: The fineness can be controlled according to user's demands.
Uses: Used for paper making, plastics, rubber, painting, coating, etc.
Packing: Slurry: with plastic drum.
Cake and powder: 25kg inner-coated plastic woven bag or 1000kg big bag.
Active Heavy Calcium Carbonate, Super Fineness
Item |
Index |
CaCO3 |
≥98% |
Hydrochloric acid insoluble |
≤0.30% |
Fe |
≤0.10% |
Volatile under 105°C |
≤0.30% |
PH value (100g/L suspending liquid) |
8.5-11.0 |
Whiteness |
≥93.0 |
Specific surface measurement, m2/g |
≥18 |
Density, g/cm3 |
2.50-2.60 |
Oil absorption, DOP, g/100g |
≤30 |
Loss on ignition |
43.0%-45.5% |
Residue on 125μm screen |
≤0.005% |
Remark: The fineness can be controlled according to user's demands.
Uses: Used as filter for plastic and rubber industry.
Packing: 25kg inner-coated plastic woven bag or 1000kg big bag. |
