Sodium chloride is widely used in food preservation and seasoning, enhancing flavor in various cuisines. It is essential in the production of chlorine and sodium hydroxide through the chlor-alkali process, which are crucial for manufacturing plastics, paper, and detergents. In medicine, it is utilized in saline solutions for intravenous therapy, wound cleaning, and as a nasal spray to relieve congestion. Additionally, it plays a role in water softening systems, replacing calcium and magnesium ions to prevent scale buildup. In colder regions, it is applied to roads and sidewalks to melt ice and improve safety. Sodium chloride is also used in industrial settings for dyeing and textile processing, as well as in the leather tanning industry.