SpecificationCaCO3 % ≧ 94.0 MgO % ≦ 1.0 PH value (10% suspension) 8.7~9.5Volatile matter at 105oC ≦ 0.50 Moisture % ≦ 1.00 Whiteness ≧ 95.0 Permeability surface area m2/g ≧ 4.80 Oil absorption g/100g ≦ 45.00 Activation degree % ≧ 95Fe2O3 + Al2O3 % ≦ 0.3SiO2 % ≦ 0.3Average particle size (u) 0.04Ignition loss % 43~46Appearance White powderPackingIn 25kg woven bag with plastic liner. (Or up to customer’s request)Quality standardAccordance with HG/T2567-94 State Chemical Industry