The cement shall not contain more than 1.75% of anhydrous sulphuric acid, nor more than 4% of magnesium oxide.
Magnesia (magnesium oxide) is better and is most extensively employed.
It is virtually a compound of the two oxides, aluminum oxide and magnesium oxide.
Magnesium pyrophosphate yields phosphorus, magnesium oxide and oxygen.
magnesium oxide, sometimes called magnesia or magnesia usta, resembles lime in many respects.
It can be prepared just like magnesium oxide, but is more often made by burning the metal.
magnesium oxide n.
A white powdery compound having a high melting point (2,800°C), used in food packaging, cosmetics, and pharmaceuticals.