Specifications
light calcium carbonate for paper making1.CaCO3 contents: 98%min
2.Moisture:<0.2%
3.Whiteness:90%min
light calcium carbonate for paper making
Product Introduction:
Light Calcium Carbonate selects high purity limestone as raw material, is made through process of calcining, chemical reaction, reselection, dehydration, drying and depolymerization.
It is adopted the technics of particular multi-selection and secondary depolymerization. It is pure and stable filler whose bulk density is small.
Technical Parameter:
Item | CaCo3 |
CaCO3 content (Dry basis) % ≥ | 98 |
PH10% Soliquit | 9-10.5 |
105 Volatile,% ≤ | 0.50 |
Insoluble substance in hydrochloric acid %≤ | 0.20 |
Moisture content, % ≤ | 0.5 |
Bulk density,g/cm3 ≤ | 0.70 |
Specific Surface, cm2/g ≤ | 45000.00-50000.00 |
Settling value,ml/g ≥ | 2.40 |
Top Cut(D98), μm ≤ | 9.50 |
Average Grain(D50),μm ≤ | 4.00 |
Fe,% ≤ | 0.10 |
Mn,% ≤ | 0.008 |
Residues 325μm % ≤ | 0 |
Whiteness(R457),% ≥ | 94 |
Absorption oil Number (DOP) ml/100g≤ | 70 |
Activation% ≥ | ---- |
Appearance: | POWDER |
Main application:
It is widely used as filler in making rubber, plastic, paper, paint, soap,building material etc.