1. It is an important inorganic raw material in the chemical industry, used to produce magnesium carbonate, magnesium hydroxide, magnesium oxide and other magnesium products, and also used as a raw material for antifreeze.
2. Used in the metallurgical industry to produce metallic magnesium (made by fusion electrolysis), liquid chlorine and high-purity magnesia, etc.
3. In the building materials industry, it is the production of light building materials such as fiberglass tiles, decorative panels, sanitary ware, ceilings, floor tiles, magnesia cement, ventilation pipes, anti-theft manhole covers, fire doors and windows, fire boards, partition walls, artificial marble, etc. An important raw material for high-rise building supplies. In magnesite products, it can be made of high-quality magnesium tiles, high-quality fire-proof boards, magnesium packaging boxes, magnesium decoration boards, lightweight wallboards, abrasive tools, stoves, fireworks fixing agents, etc.
4. In other fields, it can be used as food additives, protein coagulants, snow melting agents, refrigerants, dustproof agents, refractory materials, etc. Tofu made with brine (magnesium chloride aqueous solution) is tenderer and more delicious than tofu made with gypsum
5. Metallurgical industry: used to manufacture refractory materials and adhesives for furnace arms, and is the raw material for manufacturing No. 2 flux and smelting metal magnesium.
6. Machinery industry: In daily life, magnesia can be used to make mechanical packaging boxes, triangular cushions and furniture, etc. It is a good material for "substituting soil for materials".
7. Transportation industry: used as a road ice and snow melting agent, with fast ice melting speed, low corrosiveness to vehicles, and higher effect than sodium chloride.
8. Medicine: Use magnesium chloride to make "dried bittern" for medicinal purposes. Can be used as a laxative.
9. Agriculture: It can be used as magnesium fertilizer, potassium magnesium fertilizer and cotton defoliant.
10. Curing agent; nutrition enhancer; flavoring agent (combined with magnesium sulfate, salt, calcium hydrogen phosphate, calcium sulfate, etc.); fermentation promoter for sake, etc.; water remover (for fish cakes, the amount is 0.05%~ 0.1%); tissue improver (combined with polyphosphates, as an elasticity enhancer for surimi products). Because of its strong bitterness, the usual amount is less than 0.1%.
