The chemical compound that makes up table salt is sodium chloride (NaCl). It is a crystalline substance formed when sodium (Na) reacts with chlorine (Cl) in a chemical reaction known as ionic bonding. Sodium chloride is not only a vital seasoning used in food preparation to enhance flavor, but it also has essential functions in the human body, including maintaining fluid balance and supporting nerve and muscle function. Beyond culinary uses, table salt is also employed in various industrial applications, including chemical production, water treatment, and de-icing roads during winter. Its multifunctionality makes it a key compound in everyday life.