Magnesium carbonate, MgCO3, is a white solid that occurs in nature as a mineral. Several hydrated and basic forms of magnesium carbonate also exist as minerals. In addition, MgCO3 has a variety of uses. Magnesite and dolomite minerals are used to produce magnesium metal and basic refractory bricks. MgCO3is also used in flooring, fireproofing, fire extinguishing compositions, cosmetics, dusting powder, and toothpaste. Other applications are as filler material, smoke suppressant in plastics, a reinforcing agent in neoprene rubber, a drying agent, a laxative to loosen the bowels, and color retention in foods. In addition, high purity magnesium carbonate is used as antacid and as an additive in table salt to keep it free flowing.
specifications
Product name
Magnesium carbonate
Item
Specification (USP25)
Magnesium oxide (MgO)
40-43.5%
Calcium oxide (CaO)
0.6% Max.
Insoluble materials in hydrochloric acid
0.05% Max.
Ferric salt
0.02% Max.
Chloride
0.035% Max.
Arsenic salt
2 ppm Max.
Sulfate
0.5% Max.
Soluble salt
0.1% Max.
Heavy metals
30 ppm Max.
Package:Net weight 20kg/bag
Storage:be stored in cool and dry place in closed containers
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