Detailed explanation of the physical and chemical properties of industrial magnesium carbonate

The physical and chemical properties of industrial magnesium carbonate are explained in detail as follows

                       The physical and chemical properties of industrial magnesium carbonate are explained in detail as follows:

Basic characteristics

                       Chemical composition and structure:Magnesium carbonate is an inorganic compound with the chemical formula MgCO3,a molecular weight of 84.31,and a relative density of 3.037.

                       Physical properties:The appearance is white granular powder,which decomposes at 350℃and loses carbon dioxide at 700℃.Slightly soluble in cold water,slowly soluble in acid.

                       Chemical properties:Magnesium carbonate has weak alkalinity and can react with strong acids to form corresponding magnesium salts and carbon dioxide.In addition,magnesium carbonate can also form insoluble carbonate precipitates with some metal ions.

Thermal stability and decomposability

                       Melting point:The melting point of magnesium carbonate is 350°C.

                       Decomposition temperature:Although the melting point of magnesium carbonate is 350°C,when heated to 700°C,it begins to decompose and lose carbon dioxide,producing magnesium oxide.

Preparation method

                       Brine soda ash method:The brine and sodium carbonate solution are pretreated and then subjected to precipitation reaction,filtration washing,dehydration,drying,crushing and other processes to produce medicinal magnesium carbonate.

                       Double decomposition method of rhodochrosite:Using ammonium sulfate solution and rhodochrosite for double decomposition reaction,magnesium sulfate solution is generated,and then recycled ammonia is used to prepare carbonated ammonia water.Basic magnesium carbonate is precipitated with magnesium sulfate solution,and then filtered,washed,dehydrated,dried,crushed and other processes to produce medicinal magnesium carbonate.

application area

                       In the field of medicine,magnesium carbonate is used as an antacid and pouring agent,which has significant effects on the treatment of excessive gastric acid,gastric and duodenal ulcers.

                       Food industry:Magnesium carbonate can be used as a food additive,such as a leavening agent,stabilizer,etc.,to improve the taste and texture of food.

                       Chemical industry:In chemical production,magnesium carbonate can be used as a raw material or catalyst to participate in various chemical reaction processes.

                       In the field of environmental protection,magnesium carbonate also has certain application prospects in wastewater treatment,exhaust gas purification,etc.,which is helpful for environmental protection and sustainable development.

                       In summary,industrial magnesium carbonate plays an important role in multiple industries due to its unique physical and chemical properties.In the future,with the advancement of technology and the development of industries,the application of magnesium carbonate will continue to expand and deepen.