Other uses Ammonium carbonate is the main component of smelling salts, although the commercial scale of their production is small. Buckley's cough syrup from Canada today uses ammonium carbonate as an active ingredient intended to help relieve symptoms of bronchitis. It is also used as an emetic. It is also found in smokeless tobacco products, such as Skoal, and it is used in aqueous solution as a photographic lens cleaning agent, such as Eastman Kodak's "Kodak Lens Cleaner." It is also used for luring of apple maggots in Washington State, to monitor the spread of the infestation and adjust the borders of the Apple Maggot Quarantine Area. It is also used to reduce the amount of actual cocoa in a product, such as in Oreo cookies. See also Ammonium bicarbonate Ammonium nitrate Sal ammoniac, the mineralogical form of ammonium chloride References Carbonates Ammonium compounds Leavening agents