Sodium chloride solution is widely used in medical settings as a saline solution for intravenous therapy, helping to replenish fluids and electrolytes in patients experiencing dehydration or blood loss. It is also employed as a nasal spray or rinse to alleviate congestion and clear nasal passages. In laboratories, it serves as a buffering agent and diluent for various biochemical experiments. Additionally, it is utilized in food preservation to extend the shelf life of products and enhance flavor. In industrial applications, it is used for cleaning and disinfecting surfaces, as well as in water treatment processes to soften water and remove impurities.