Description General description Magnesium oxide (MgO) is a metal oxide formed by processing magnesite. It can also be extracted from sea water. It is industrially produced by the calcination of magnesium carbonate or magnesium hydroxide.[1] Application MgO metal powder can be used for a variety of applications such as medical use, refractory materials, energy applications and in the preparation of magnesia nanoparticles.[2][3][4][5] Packaging 10, 50 g in poly bottle