Content:
Physic-chemical properties: | Physic-chemical properties | High quality product | Class 1 product | Class 2 product | Qualified product |
Whiteness(%) | ≥90 | ≥85 | ≥83 | ≥81 | |
Dust(mm2/g) | ≤0.4 | ≤0.8 | ≤1.0 | ≤1.2 | |
CaCO3(%) | ≤3.0 | ≤4.0 | ≤6.0 | ≤8.0 | |
Loss of ignition(800°C)(%) | ≤7.0 | ≤8.0 | ≤10.0 | ≤12.0 | |
Fineness,325 mesh(45μm) | ≥98 | ||||
PH value | 7-9 | ||||
Moisture contents(%) | ≤0.5 | ||||
Industrial Usage: | Applied to all kinds of filling agents of papers and paperboard,the control agent of wood pitch. |