Ammonium chloride is widely used in various industries due to its versatile properties. In the pharmaceutical sector, it serves as an expectorant in cough medicines, helping to clear mucus from the respiratory tract. It is also employed in the production of dry cell batteries, where it acts as an electrolyte to facilitate the flow of ions. In the agricultural industry, it is used as a nitrogen source in fertilizers to promote plant growth. Additionally, ammonium chloride is utilized in metalworking as a flux in soldering and galvanizing to clean metal surfaces and improve adhesion. In the food industry, it is used as a yeast nutrient in baking and as a flavoring agent in licorice. Its applications extend to laboratory settings, where it is used in buffer solutions and as a reagent in various chemical reactions.