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Calcium Carbonate for rubber
1.Calcium Carbonate 1)Light Calcium Carbonate powder Size:800-2000mesh Whiteness:92% Above Usage: |
For filling compound for various plastic, natural or synthetic rubber products, excess weld metal & paper making; colorant for paint & dope, additive for household chemical, medicine & edible mushroom. |
2)Heavy Calcium Carbonate powder Size:325mesh,400mesh,800mesh,1000mesh,1250mesh and so on Usage:the production of calcium chloride anhydrous sodium dichromate,cement, etc. Whiteness:89-93% 3) Activated Calcium Carbonate Used as a reinforcing agent for rubber, plastics and other products can improve tensile strength , abrasion resistance , foam rubber foam evenly . The activity of calcium carbonate also can be used as a filler of the inks and coatings . 2.Packing |
In 25kgs or 50kgs woven bag with plastic liner. (Or up to request) |
3.Quality standard |
Accordance with State Chemical Industry Standard HG2226-91 |
Item | Premium grade | A grade | |
CaCO3 % | 98.0 | 97.0 | |
PH value (10% suspension) | 8.0~10.0 | 8.0~10.5 | |
Volatile matter (105oC) | 0.40 | 0.70 | |
HCL insoluble matter % | 0.10 | 0.20 | |
Depression volume (ml/g) | 2.8 | 2.6 | |
Fe content % | 0.08 | 0.10 | |
Mn content content % | 0.006 | 0.008 | |
Residue 125μm % | 0.005 | 0.010 | |
Residue 45μm % | 0.30 | 0.40 | |
Whiteness | 90.0 | 90.0 | |
Appearance | White powder | White powder | |
