When magnesite is calcined at 1800 ℃, carbon dioxide completely escapes, magnesium oxide forms a dense block of periclase, and the calcined magnesium (also known as sintered magnesite) is weighed. This kind of calcined magnesium has high fire resistance. Its main component is magnesium oxide, which is made from natural super-grade magnesite ore through flotation purification, light burning, fine grinding, high pressure ball pressing and ultra-high temperature oil shaft kiln calcination.
Magnesium oxide is an alkaline oxide, which has the properties of alkaline oxide and belongs to cementitious material. White powder (light yellow is magnesium nitride), odorless, tasteless, non-toxic, and typical alkaline earth metal oxide.