Magnesium oxide (chemical formula: MgO) is an oxide of magnesium, an ionic compound. It is a white solid at normal temperature. Magnesia exists in nature in the form of periclase and is the raw material for magnesium smelting.
Magnesium oxide has high fire resistance and insulation performance. It can be transformed into crystals after being burned at a high temperature above 1000 ℃. When it rises to 1500 - 2000 ° C, it becomes dead burned magnesium oxide (the so-called magnesia) or sintered magnesium oxide. Magnesia is commonly known as bitter earth, also known as magnesium oxide. Magnesia is an alkaline oxide, which has the general property of alkaline oxide and belongs to cementitious material. White powder (light yellow is magnesium nitride), odorless, tasteless, non-toxic, is a typical alkaline earth metal oxide, chemical formula MgO. White powder, melting point 2852 ℃, boiling point 3600 ℃, relative density 3.58 (25 ℃). Soluble in acid and ammonium salt solution, insoluble in alcohol. Solubility in water is 0.00062 g/100 mL (0 ° C)
