Magnesium oxide is widely used in the construction industry as a key component in cement and concrete, enhancing their strength and durability. It is also employed in the manufacturing of refractory materials, such as furnace linings and crucibles, due to its high melting point and thermal stability. In agriculture, it serves as a magnesium supplement in fertilizers to improve soil quality and promote plant growth. Additionally, it is utilized in the medical field as an antacid to relieve heartburn and indigestion, and as a laxative to treat constipation. In environmental applications, magnesium oxide is used to neutralize acidic waste and control air pollution by capturing sulfur dioxide emissions. It also finds use in the production of electrical insulators, glass, and ceramics, contributing to their thermal and mechanical properties.