Sodium Is definitely the most commercially critical alkali metallic. Most processes to the creation of sodium include the electrolysis of molten sodium chloride. Cheap and accessible in tank-car or truck quantities, the element is used to make gasoline additives, polymers such as nylon and artificial rubber, pharmaceuticals, and many metals https://www.tjcyindustrialchem.com/news/sodium-chlorite-uses-and-the-difference-from-chlorine.html