Light Magnesium Oxide and Ground Magnesium Oxide

  • Author:Ray Dean
  • Release on :2016-06-14

Magnesium Oxide, commonly known as magnesia, also known as magnesium oxide, magnesium oxide is a basic oxide with alkali oxides continuity, cementitious material belongs. White or light yellow powder, odorless, tasteless, non-toxic, is typical of alkaline earth metal oxide, the chemical formula MgO. White powder, melting point 2852 deg.] C, boiling point of 3600 deg.] C, a relative density of 3.58 (25 ). Soluble in acid and ammonium salt solution. Exposed to the air, which is easy to absorb moisture and carbon dioxide is becoming basic magnesium carbonate, light goods heavier product more quickly, in combination with the generation of magnesium hydroxide in water, under certain conditions, it was slightly alkaline reaction, a saturated aqueous solution of pH 10.3.


There are two kinds of light magnesium oxide and ground magnesium oxide. Loose light volume, as a white amorphous powder. Odorless and tasteless non-toxic. Density 3.58g / cm3. Insoluble in water and organic solvents, solubility in water due to the presence of carbon dioxide increases. It can be dissolved in acid and ammonium salt solution. High temperature burning into crystals. In case of carbon dioxide in air to generate magnesium carbonate complex salt. Heavy volume of close, white or beige powder. Easy compound with water, exposed in the air easily absorb moisture and carbon dioxide. Mixed with magnesium chloride solution hardening cementitious easily.


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