Sodium oxide is primarily used in the glass and ceramics industry as a flux to lower the melting point of silica, enhancing the production process. It is also employed in the manufacture of specialty glasses, such as optical and borosilicate glasses, to improve their properties. In chemical synthesis, it serves as a strong base and is utilized in various reactions, including the production of sodium hydroxide. Additionally, sodium oxide finds application in the formulation of certain detergents and cleaning agents due to its alkaline nature. Its use in the electronics industry includes the production of components like glass seals and insulators.