The purpose and preparation method of magnesium oxide

Magnesium Oxide, alias, is forged, magnesium, and bitter soil. It is a magnesium oxide. The chemical formula is MGO, a ionic compound and inorganic object. It usually exists in the form of white or pale gray powder. Generally, inner plastic bags are used, and double -layer cowhide paper packages are used. Store in a dry and cool place. Store with humidity, inorganic acid and strong alkali. Prevent scattered packets during transportation. According to the data of Huayuan.com, its molecular weight is 40.304, the density is 3.58 g/cm³, its melting point is 2852 ° C, the boiling point is 3600 ° C, it is difficult to dissolve in water, insoluble in alcohol, and the solubility is 6.2 mg/L (0 ° C).

Magnesium oxide has high refractory insulation performance. After high temperature burning above 1000 ° C, it can be transformed into a crystal, and it is rising to 1500-2000 ° C to become a magnesium (magnesium sand) or sintering magnesium oxide. In the air, carbon dioxide generates magnesium carbonate. In the air, it can absorb water and carbon dioxide, generate magnesium carbonate and salt to reduce activity.

Light -burning magnesium oxide and magnesium chloride water solution can be used in a certain proportion to the production of magnesium cement. A hardening body with certain physical mechanical properties, with the advantages of light quality, high strength, fire insulation, energy saving and environmental protection. , Agriculture, machinery and other fields.

Magnesium oxide can also be used for cleaners, cashmeters, and desulfurization agents in high -grade lubricating oil processing, which greatly improves the density and fluidity of lubricating membrane and reduces gray. Removal of mercury removal to reduce lubricating oil or fuel waste to the environment. Magnesium oxide treated with surface treatment can also be used as complexing agents, chelating agents, and carriers in the oil refining process, which is more conducive to the product distillation and improve the quality of the product. Especially when the burning of heavy oil is burned, the mg0 can eliminate the damage to the furnace in the furnace.

Magnesium oxide is also used for food additives, color stabilizers, and pH tunants as magnesium supplements for health products and food. Triveric decocent meal pH regulator for refined sugar. As an anti -node agent and anti -acid agent for wheat flour, milk powder chocolate, cocoa powder, grape powder, sugar powder and other fields, it can also be used in the field of ceramics, enamel, glass, dye and other fields.

The use of magnesium oxide is so extensive, it can also be used as anti -acid agent, leading dehydration, adsorbent, complexing filtrate, desulfurization agent, pH regulator in the field of medicine; its good magnetic conductivity allows it to have it in the electromagnetic industry. Widely used; nano -grade magnesium oxide has become an important new material in the 21st century after modification processing.

Therefore, the research of magnesium oxide in the field of new materials is in full swing. It can not only purchase brand reagents on websites such as Huayuan Mall for research, or to prepare magnesium oxide in the laboratory. Here is a method of burning a compound with magnesium.

1. Place pure magnesium hydroxide or alkaline magnesium carbonate in the porcelain plate, spread it into a thin layer, put it in the middle of the combustion tube, heat it with electric furnace, began to decompose at 850 ° C at 850 ° C. Decomposition above 950 ° C. Heating for 2 to 3 hours can get pure magnesium oxide.

Reference materials: www.chmsrc.com/cas/1309-48-4_965636.html

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