The difference between light burned magnesium oxide and active oxidase

Light burnt magnesia: scientific name magnesia.

It has a density of 2.94 and is a light yellow or white powder. It has a melting point of 2852℃ and a boiling point of 3600℃. It is soluble in acids and ammonium, but insoluble in water and ethanol. Deliquescent easily in air. It belongs to the gas rigid cementing material.

Active magnesium oxide, the molecular formula MgO.

Its molecular weight is 40.30. Its chemical composition, physical form and other indicators are not much different from ordinary magnesium oxide, but some indicators of active magnesium oxide are different from ordinary magnesium oxide. To have an appropriate particle size distribution, the average particle size is <2 & Micro; M (2000nm); The microscopic morphology is irregular grain or subspherical grain or flake crystal. The activity represented by citric acid (CAA value) was 12~25s (the smaller the value, the higher the activity). The activity indicated by iodine absorption value was 80~120 (MGI2/100GMGO). The specific surface is between 5~20m3/g, and the apparent volume is between 6~ 8.5ml /g. In addition, because of the high activity of this magnesium oxide, it is easy to absorb water, and sometimes needs to be protected by chemical treatment. As a new material, it has been widely used because of its special properties which are not available in conventional materials in some aspects.

USES:

Active magnesium oxide is an important raw material for the preparation of high functional fine inorganic materials, electronic components, inks and harmful gas adsorbents. It is expected to be developed into advanced materials under high temperature, high corrosion and other harsh conditions. It can also be used as fillers for paints, paper and cosmetics, fillers and reinforcers for plastics and rubber, and auxiliary materials for various electronic materials. Light calcined magnesia is a kind of light calcined magnesia obtained from natural magnesite, brucite and magnesium hydroxide Mg(OH)2 extracted from sea water or brine by calcination at 700~1000℃.