Used as a refractory material in furnace linings due to its high thermal stability and resistance to basic slags. Commonly employed in agricultural and horticultural applications to correct magnesium deficiencies in soil. Utilized in the construction industry as a component in fireproofing and insulating materials. Found in pharmaceuticals as an antacid and laxative to treat indigestion and constipation. Also serves as a drying agent and insulator in electrical cables. Used in wastewater treatment to neutralize acidic conditions and remove impurities.

This 50 nm spherical magnesium oxide (99.9% metals basis) is a specialty nanomaterial with high surface area and enhanced reactivity, suitable for advanced applications such as catalysts in chemical synthesis, additives in nanocomposites for improved mechanical properties, biomedical uses including antibacterial coatings, and environmental remediation for pollutant adsorption.