magnesium carbonate

magnesium carbonate Used in the manufacture of magnesium, magnesium oxide, fireproof, paint, ink, pottery, glass, toothpaste, rubber, pigment, dately used product industry, also as food additive and anti-acid agent in pharmaceutical industry, as high-quality filler and reinforcement agent of rubber products, as fireproof and thermal insulation materials resistant to high temperature. Packing: pp woven bag lined with polyethylene plastic bag, 20kg/bag Standard: HG/T2959-2000 Items The excellent grade/Light The first grade/Light The qualified grade Industrial grade/Heavy MgO ≥ 41-45 40-45 38 40-45 CaO ≤ 0.43 0.7 1.0 0.7 Water ≤ 2.0 3.0 4.0 3.0 Chloride ≤ 0.1 0.15 0.3 0.5 Fe ≤ 0.02 0.05 0.08 0.05 Acid-insoluble substance≤ 0.1 0.15 0.2 0.15 Sulphate ≤ 0.1 0.15 0.3 2 Mn ≤ 0.004 0.004 - 0.004 loss on ignition ≤ 54-58 54-58 ≥ 52.0 54-58 Accumulation density ≤g/ml 0.12 0.14 - ≥0.4 Screen Residues≤ 150um 0.025 0.03 0.03 0.03 75um 1.0