Magnesium is a kind of a silver white light alkaline earth metal, with active chemical properties, can react with acids to form hydrogen, malleable and heat dissipation of certain. Magneisum is widely distributed in nature, is one of the essential elements of human body. The common compound of Magnesium is Magnesium Chloride. Magnesium Chloride is a kind of white or colorless crystals, the chemical formula of it is MgCl2·6H2O, it can be easily deliquescent, it will lose crystal water when it is placed in dry air and weathering. The melting point of it is 714℃, and boiling point of it is 1412℃. It can be soluble in water, boiling water and ethanol. It tastes salty, and has a certain resistance. It is also named brine, it is make up by the salt water of seawater the residue of the mother liquor in the salt pond. The main ingredients of brine are Magnesium Chloride,calcium sulfate, calcium chloride and sodium chloride, the brine tastes bitter and is poisonous. After evaporative cooling obtain precipitate Magnesium Chloride crystallization, and known halogen blocks. It is commonly used as tofu coagulant in northern China. It can condensed milk proteins into a gel, and analysis of the water out.
Magnesium Chloride can be used in the production of Magnesium metal, disinfectant, frozen brine, ceramics, and used for filling fabric, paper and so on. The solution and Magnesium oxide mixed, can be a hard wearing magnesia cement.
It is an important inorganic material in the chemical industry. It can be used in the production of Magnesium carbonate, Magnesium hydroxide, Magnesium oxide, Magnesium products, also used as an antifreeze material and so on. For the production of Magnesium metal, liquid chlorine and high purity magnesia in metallurgical industry. In the building materials industry is the production of lightweight building materials such as glass tile, sanitary ware, decorative board, ceiling, floor brick, magnesia cement, ventilation pipe, manhole cover, fire doors, fire board, partition board, an important raw material for the production of artificial marble high-rise building supplies. The magnesite products as high quality Magnesium tile, high quality fire board, Magnesium packing box, Magnesium decoration board, light wallboard, abrasives, stoves, fireworks solid lead agent.
In other fields as food additives, protein coagulant, snow melting agent, refrigerant, dustproof agent, refractory material and so on. With brine (Magnesium Chloride aqueous solution) of bean curd gypsum point of tofu, quality tender and delicious. As a road ice and snow melting agent, ice speed, small vehicle corrosion, higher than that of sodium chloride effect. Magnesium Chloride can also be used to make Magnesium fertilizer, potassium Magnesium fertilizer and cotton defoliant.