Calciumcarbonat

Heavy calcium carbonate white powder of high white, brightness and purity. Used in Paint, Dope, Rubber, PVC pipe, Paper making etc as stuff materials. Heavy calcium carbonate specification MW: 100.09 CaCO3 contents: 98.5% Fe2O3 contents: 0.03% SiO2 contents: 0.02% Al 2O3 contents: 0.01% Size: 325mesh, 400mesh, 600mesh, 800mesh. Whitenss: degree 96 % Moisture : <0.2% Oil absorption value: 18-27 DOP absorption value c.c/ 100g : 21 40 D97 (um) :4 25 PH value: 8.5 9.5 Denstiy (g/cm3): 2.7 Heavy metal( as Pb): 0.001% max