Magnesium oxide

CAS: 1309-48-4
Molecular Formula: MgO
Molecular Weight: 40.30
Product description:White fine powder. No smell. Because of different preparation methods, with light and heavy. In the visible and near ultraviolet light has strong refraction. Dew buy air can absorb the moisture and carbon dioxide and gradually become the basic magnesium carbonate, light is heavy, faster, and water in combination with magnesium hydroxide is generated, is slightly alkaline reaction, saturated water solution of pH 10.3. But easily soluble in dilute acid, very slightly soluble in water, because of the existence of carbon dioxide and increase its solubility. Insoluble in ethanol. Relative density (d254) 3.58. Melting point is 2852 ℃. The boiling point of 3600 ℃.It is mainly used for dispensing internal and potions to neutralize excess stomach acid. Commonly used agents are: milk of magnesia - emulsion; Magnesium cover plates, each containing MgO0.1 g,; Acid powder made of mixed with the sodium bicarbonate, magnesium oxide powder, etc.