Used extensively in food preservation and seasoning, enhancing flavor and extending shelf life by inhibiting microbial growth. Employed in the production of various chemicals such as chlorine and sodium hydroxide through electrolysis. Serves as a de-icing agent on roads and walkways due to its ability to lower the freezing point of water. Utilized in medical applications for saline solutions to clean wounds, administer intravenous fluids, and maintain hydration. Plays a key role in water softening systems by facilitating ion exchange processes. Also used in the textile and dyeing industries to improve dye uptake and in leather processing for curing and preservation.