Oxide of magnesium 2519901000
Magnesium oxide (burnt magnesia, magnesium oxide) is a fine white light powder. It is practically insoluble in water, but easily absorbs it; we will dissolve in diluted hydrochloric acid. The main form is the mineral periclase.
The density is 3.58 g / cm³. Melting point - 2825 ° C, boiling point - 3600 ° C.
Magnesium oxide is obtained by firing magnesite and dolomite minerals.
Depending on the temperature of production, magnesium oxide is two types:
1. Light magnesia is a colorless powder that easily reacts with dilute acids and water to form the corresponding salts;
2. Heavy magnesium, or metallurgical powder, which consists of large crystals of periclase and is characterized by acid and water resistance.
Chemical formula: MgO
Magnesia, Magnesium Oxide
Fields of Application:
In industry it is used for the production of refractories, cements, refining of petroleum products, as a filler in the production of rubber. Ultra-light magnesium oxide is used as a very fine abrasive for cleaning surfaces, in particular, in the electronics industry.
In medicine, it is used with increased acidity of gastric juice, as it is caused by an excess content of hydrochloric acid. Burnt magnesia is also taken if acids accidentally enter the stomach. / p>
In the food industry, registered as a food additive E530, which prevents caking and clumping.
In artistic gymnastics, applied to the palm of an athlete, the powder protects him from the danger of falling off the gymnastic apparatus.
It is an absolute reflector - a substance with a reflection coefficient equal to one in a wide spectral band. It can be used as an affordable standard of white color.
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