AR Magnesium Oxide 

Introduction:

White amorphous powder. The relative density is 3.26 ~3. 43.0dorless, tasteless and non-toxic. Soluble in acid and anumonium salt solution, insoluble in water and ethanol. Strong refraction in the visible and near ultraviolet range. When exposed to air, it is easy to absorb moisture and carbon dioxide and gradually become basic magnesium carbonate, which combines with water to form magnesium hydroxide, which is slightly alkaline reaction, and the pH of the saturated aqueous solution is 10.3. But it is very soluble in dilute acid, very slightly soluble in pure water, and its solubility is increased due to the presence of carbon dioxide. It is a mild catalyst. Relative density (d254) 3. 58. Melting point 2852 ℃. Boiling point 3600℃.

Chemical formula: MgO

Relative molecular mass: 40. 30

Quality standard: chemical industry standard HG/T2679- 2006.

Ionic equation:
 

Mg0+2H+=Mg2++H20

Mg0+2MH4+=Mg2++2NH3↑+H20

Use:

Analytical pure magnesium oxide is mainly used in the reagent industry and other chemicals or intermediates, and fluorescent
grade magnesium oxide is mainly used as raw materials for trichromatic phosphors and other types of light bodies.

1. gas phase method

The high- purity metal magnesium and oxygen are reacted to form crystal nuclei,and then the par ticles continue to grow t
o btain high purity micropowder magnesium oxide. The crude raw material containing 80% by weight or more of magnesium oxide is dissolved in an inorganic acid (sulfuric acid, hydrochloric acid, nitric acid) at a molar ratio of 1:2 to prepare a magnesium salt of the inorganic acid. Refined to remove impurities, pressurized and heated in an oxygen atmosphere, washed with water, dehydrated,dried, and heated at 1100℃ for 1 hour to obtain highr purity magnesium oxide.

The magnesiun hydroxide calcination method uses the magnesium sulfate solution that has been removed and purified as the raw material,and pure ammonia water is used as the precipitant to add Mg (0H)2 to the magnesium solution to precipitate Mg (OH) 2.The purity of Mg(0H)2 is then dried and calcined to obtain high- purity magnesia.

The calcined bitter earth powder is subjected to water separation to remove impurities and then precipitate into magnesium
slurry, and then through digestion, drying and calcination, magnesium hydroxide is dehydrated to form magnesium oxide. Its
Mg0+H20-→Mg (0H) 2Mg (0H) 2- +Mg0+H20;

2. Brine- amonium bicarbonate method

The brine is reacted with anmonium bicarbonate to generate basic magnesium carbonate, which is then aged, washed, dehydr ated,
dried, calcined, and then purified and heat treated after being crushed to obtain silicon steel grade magnesiun oxide.

Certificate:

FAQ:

Question 1: Can I get sample? how long will it take?
Yes, we can provide samples. Samples will be shipped according to customers’ request. It will take approx 3-5 days to arrive.

Question 2:What’s your payment terms ?
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Question 3:Could you send me all your catalog with pricing?
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Question 4:Which shipping method would you suggest?
We would suggest sea freight; however, this is customers’ decision on whichever convenient and economical for them.