White, magnesium oxide (chemical formula: MgO) is the oxide of magnesium, an ionic compound. It is a white solid at room temperature. Magnesia exists in nature in the form of periclase and is the raw material for smelting magnesium.


Magnesium oxide has high fire resistance and insulation. It can be transformed into crystal after being burned above 1000 ℃ to 1500-2000 ℃ ° C is dead burned magnesia (i.e. magnesia) or sintered magnesia.


White powder (light yellow is magnesium nitride), odorless, tasteless, non-toxic, is a typical alkaline earth metal oxide. White powder, melting point 2852 ℃, boiling point 3600 ℃, relative density 3.58 (25 ℃). Soluble in acid and ammonium solution, insoluble in alcohol.