Ammonium carbonate is a white, crystalline compound often used in baking and as a leavening agent. It releases carbon dioxide when heated, helping dough rise. This makes it a popular ingredient in recipes for cookies and crackers, giving them a light and airy texture. In addition to baking, ammonium carbonate has applications in the production of ammonia and as a smelling salt in sports. It can also be found in some pharmaceutical products. While it is generally safe in small amounts, it’s important to use it correctly to avoid any potential health risks.