Ammonium carbonate is a white, crystalline salt that is often used in baking and as a leavening agent. It releases ammonia gas when heated, which helps dough rise and gives baked goods a light texture. This compound is also known as baker's ammonia and has been used for centuries in various recipes. In addition to its culinary uses, ammonium carbonate has applications in the production of fertilizers and as a smelling salt in sports. It is important to handle it with care, as inhaling its dust can irritate the respiratory system. Overall, ammonium carbonate is a versatile compound with both practical and historical significance.