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 utilized in the manufacturing of dry cell batteries, where it acts as an electrolyte to facilitate ion flow. In the food industry, it is employed as a yeast nutrient in baking and as a flavoring agent in licorice. Additionally, it plays a crucial role in metalwork, particularly in soldering and tin plating, by cleaning metal surfaces and improving adhesion. In agriculture, it is used as a nitrogen source in fertilizers to promote plant growth. Its applications extend to laboratory settings as well, where it is used in buffer solutions and as a reagent in various chemical reactions.