![]() ![]() This is also true for the carbonate of magnesium. It means that the carbonates of the metals of this group will undergo thermal decomposition and spit out their corresponding metal oxides and CO₂. All these metals are known for their thermal decomposition properties. If you look at Group 2 in the periodic table, you will find six metals. MgCO₃ cannot dissolve in water or alcohol but it can dissolve in inorganic acids. MgCO₃ is odourless but as the Chemical Book website points out - because of its high absorption capacity, it can absorb many types of odour. Magnesium carbonate can either appear as bulky white powder if it is heavy or as light white powder if it is light. The key properties of magnesium carbonate are: In the laboratory, the reaction between any (water-soluble) magnesium salt and sodium bicarbonate will result in the production of MgCO₃. The above minerals are all natural sources of magnesium carbonate but what about the industrial manufacturing of MgCO₃? Yes, it is also possible. As you can guess from the names, the dihydrate has 2 moles of H₂O along with MgCO₃, the trihydrate form has 3 moles and the pentahydrate form of magnesium carbonate has 5 moles of H₂O. Another hydrated form of magnesium carbonate is lansfordite. There is also the trihydrate form of MgCO₃ known as the nesquehonite which is quite similar to barringtonite. Found first in Barrington Tops, Australia, this dihydrate mineral is formed from the leaching of basalt. The salt can also be found in the form of dihydrate mineral known as barringtonite. Magnesite is processed to synthesize magnesium carbonate. The miners do not need to drill too much deep inside the earth to mine Magnesite. Magnesite is the altered form of Magnesium-rich rocks. ![]() ![]() Magnesite is a mineral that occurs as white or grey crystalline solid. MgCO₃ is mostly obtained by mining Magnesite. Why is it a ‘salt?’ – This is because the compound is made up of MG²⁺ and CO₃²⁻, the two ions negate each other because of the equal amount of positive and negative charge. So now that you know the background, let us talk about MgCO₃ in detail. Carbonate is that compound that is made up of Carbon and Oxygen. Inorganic salt is different from organic salts. However, the overall charge of the salt is zero - it is neutral since salts must have an equal number of anions and cations. In other words, salt is a compound made up of anion and cation. In chemistry, salt is a compound that is made up of the combination of a positively charged compound and a negatively charged compound. It is an inorganic salt.īefore reading about Magnesium carbonates in detail, it is necessary that you know what is a salt or carbonate in chemistry. Magnesium carbonate, as the name suggests, is a carbonate having positively charged Magnesium ion and negatively charged carbonate ion. ![]()
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