The product with fine particle size grade, reasonable particle size distribution, high transparency and brightness. It is calcined at appropriate temperature for dehydroxylation and decarbonization to improve transparency and brightness.
Main application:
Decorative paper, paper making, etc.
Typical Properties:
|
Properties |
Unit |
Standard |
|
Whiteness |
R457, % |
≥93 |
|
Particle size |
-2μm, % |
80-84 |
|
Average particle size |
D50, μm |
0.9±0.1 |
|
Screen residue |
325 mesh, % |
≤0.005 |
|
Oil absorption |
g/100g |
60±5 |
|
Dispersion |
Hegman,μm |
≤50 |
|
Moisture |
% |
≤0.5 |
|
pH |
------ |
6.0-8.0 |
Chemical Composition:
|
SiO2（%）
|
Al2O3（%） |
Fe2O3（%） |
TiO2（%） |
CaO（%） |
MgO（%） |
K2O（%） |
Na2O（%） |
MnO（%） |
|
52±2 |
45±2 |
≤0.8 |
≤1.5 |
≤0.5 |
≤0.3 |
≤0.1 |
≤0.2 |
≤0.004 |