Ammonium hydrogencarbonate

Ammonium hydrogencarbonate: properties, uses, pros, cons, safety Ammonium hydrogencarbonate (synonyms: Ammonium bicarbonate, NH₄HCO₃) is a food additive used mainly as a leavening agent in dry baked goods. On labels it may appear as E503(ii). Chemically, it decomposes with heat, releasing carbon dioxide (CO₂), ammonia (NH₃), and water—and it is...