Chemistry: magnesium carbonate LightMolecular formula: （3-5）MgCO3 . Mg(OH)2 . （3-7）H2O
Performance: White magnesium carbonate Light for the fragile massive carbonate or loose white powder. Odorless, the relative density of 2.2. Melting point of 350 ℃. Be steady in the air, heated to 700 ℃ in carbon dioxide. Almost insoluble in water, but in the water caused minor alkaline reaction, do not dissolve in alcohol, acid can be dissolved and foam.
Quality standard:HG/T2959-2000 INDEXESPREMIUM GRAGE FIRST GRADE RESULT Moisture，≤% 2.0 3.0 <1.5 Content(AsMgO)，≥%41.0 40.0>45.0 Acid Insoluble，≤%0.10 0.15 <0.03 Loss on Ignition% 54-58 54-58 56 Chloride(AsCl)，≤%0.10 0.150.06 Iron(AsFe)，≤% 0.02 0.05 <0.01 Manganese(AsMn），≤%0.004 0.004<0.03 Sulphate(AsSO4)，≤% 0.10 0.150.08 Calcium Oxide(AsCaO)，≤% 0.43 0.70.40 Residue（150um），≤% 0.025 0.030.005 Accumulate Density(g/ml)，≤% 0.12-0.25 0.12-0.250.12-0.25 Use: Make magnesium salt, magnesium oxidize, fire prevention heat insulator, fire prevention the coating, printing-ink, pottery, glass, such industry as cosmetics, toothpaste and pigment, etc... Packing： It is packed with polyethylene bag as liner and a compound plastic woven bag as the outer layer. The net weight of each bag is 20 kg. | 
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