Magnesium oxide is a white amorphous powder. Odorless, tasteless non-toxic. The relative density is about 3.58 (25℃). Melting point is 2852℃, boiling point is 3600℃. It is insoluble in water, insoluble in alcohol, soluble in acid ammonium salt solution. It can be converted into crystal after burning at high temperature above 1000℃. When the temperature rises above 1500℃, it will become dead burned magnesia sintered magnesia. In case of carbon dioxide in the air, it generates basic magnesium carbonate.

Process flow

Light magnesium oxide is generally changed magnesium chloride, magnesium sulfate, magnesium bicarbonate to water-soluble products, then to chemically insoluble products, then calcined to magnesium oxide. The bulk density of the products produced is generally 0.2 (g/ml), while the heavy magnesium oxide is generally directly calcined magnesite brucite, the bulk density is generally 0.5 (g/ml) ).

use

Light magnesium oxide is mainly used as a raw material for preparing ceramics, enamels, refractory crucibles refractory bricks. It is also used as a filler for polishing agent adhesive coatings paper, as an accelerator activator for neoprene fluororubber. After mixing with magnesium chloride other solutions, it can be made into magnesium oxide water tone. It is used as antacid laxative in medicine. It is used for gastric ulcers caused by hyperacidity duodenum.

In the chemical industry, it is used as a catalyst a raw material for manufacturing magnesium salts. It is also used in the manufacture of glass, dyed meal, phenolic plastics, etc. Heavy magnesium oxide rice milling industry is used for firing mills semi-rollers.