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Activity is not only an important physicochemical property of magnesium oxide, but also an important indicator for measuring magnesium oxide used in the rubber industry. In other words, the heavy mass is pure MgO, and the light weight is xMgO•yMg(OH)2, which is basic magnesium oxide. Among them, the percentage of light magnesium oxide plays an important role in the activity.
Magnesium oxide is commonly known as bitter soil, also known as magnesium oxide. Magnesium oxide is a basic oxide and has the property of a basic oxide. It is a gelling material. White powder (light yellow is magnesium nitride), odorless, tasteless, non-toxic, is a typical alkaline earth metal oxide, chemical formula MgO. A white powder having a melting point of 2852 ° C, a boiling point of 3600 ° C and a relative density of 3.58 (25 ° C). Soluble in acid and ammonium salt solution, insoluble in alcohol. Solubility in water is 0.00062 g/100 mL (0 °C)