English name Magnesium carbonate CAS No. :13717 -00-5 
 Chemical formula MgCO3 
 Properties: White monoclinic crystal or amorphous powder. Non-toxic, odorless, stable in air. The relative density of 2.16. Slightly soluble in water, weakly alkaline aqueous solution in the water solubility of 0.02% (15 ℃). Soluble in acid and ammonium salt solution. Case of the decomposition of acid release carbon dioxide. Slightly soluble in water under normal circumstances 
 Uses: used in the manufacture of magnesium, magnesium oxide, fireproof paint, ink, pottery, glass, toothpaste, rubber fillers and Players with towels. In the rubber industry to do reinforcing agents, fillers, do insulation, high temperature fire insulation materials, manufacturing of advanced glass products, 
 Ceramic enamel surface brightness from the role of making magnesium, pigments, paints, cosmetics, shipbuilding, boiler manufacturing.