Magnesium oxide powder Raw Materials CAS 1309-48-4

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Uses and synthesis of Magnesium oxide powder

Magnesium oxide powder is commonly known as bitter earth, also known as magnesium oxide. It is a typical alkaline earth metal oxide, chemical formula MgO. white powder, melting point is 2852 ℃, boiling point is 3600 ℃, relative density is 3.58 (25 ℃).

Magnesium oxide CAS 1309-48-4 Soluble in acid and ammonium salt solution. Slowly interact with water to produce magnesium hydroxide. It can dissolve in carbon dioxide solution to form magnesium bicarbonate.Magnesium oxide Raw Materials It can gradually absorb water and carbon dioxide in the air, and emit irritating fumes when heated.

Applications / Functions of Magnesium oxide powder

1, lightweight Magnesium oxide Raw Materials used in ceramics, enamels, refractory crucibles, refractory bricks, etc., also used as abrasives, adhesives, paints and paper fillers, accelerators, activators of neoprene rubber. Medicine Magnesium oxide powder used as antacid, laxative, used for hyperacidity and duodenal ulcer disease, but also used in glass dyes, phenolics, plastics and other industries.

2, dead burn Magnesium oxide CAS 1309-48-4 that is, magnesium sand, granular and brick, widely used as a refractory material for steel furnaces, cement kilns, glass combustion furnaces and so on.

3, alkaline granular refractory, Magnesium oxide powder is mainly used in the metal refining industry, to block refractory for the hearth, or granular for the maintenance materials, with spraying, coating method attached to the furnace wall, in order to strengthen the refractory capacity of the furnace.

4, Magnesium oxide Raw Materials in the water to produce a positive charge, most of the suspended matter is negative charge, play a role in absorption, can improve the filtering effect.

Physicochemical Property of Magnesium oxide powder

White amorphous powder. Odourless and tasteless. Magnesium oxide Raw Materials Difficult to dissolve in water, insoluble in alcohol, soluble in acid or ammonium salt solution.

Production methodprocess of Magnesium oxide powder

• Vapour phase method will be high-purity magnesium metal and oxygen reaction to generate crystal nuclei, and then make the particles continue to grow, the production of high-purity micropowder Magnesium oxide powder.
• Crude raw material containing more than 80% (by weight) of magnesium oxide is dissolved with inorganic acid (sulphuric acid, hydrochloric acid, nitric acid) in the ratio of 1:2 molar ratio, and magnesium salt of inorganic acid is made. Refinement to remove the impurities in it, under the oxygen atmosphere for pressurised heating treatment, and then washed, dehydrated, dried, heated at 1100 ℃ for 1h, to produce high purity Magnesium oxide CAS 1309-48-4.
• Magnesium hydroxide calcination method to remove impurities purified magnesium sulfate solution as raw material, pure ammonia as precipitant added to the magnesium solution to precipitate Mg(OH)2, through the plate and frame filter press for solid-liquid separation, the filter cake was washed to obtain high-purity Mg(OH)2, and then drying, calcination to produce high-purity Magnesium oxide Raw Materials .

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