Ammonium carbonate is a salt that was the predecessor of baking soda and baking powder.
Ammonium carbonate may be manufactured in two ways:
- Sublimation of a mixture of ammonium sulfate and calcium carbonate
(NH4)2SO4 + CaCO3 → (NH4)2CO3 + CaSO4
- Gaseous carbon dioxide is passed into an absorption column containing aqueous ammonia solution causing distillation. Vapors containing ammonia, carbon dioxide, and water condense to form a solid mass of crystals.
2 NH3 + CO2 + H2O → (NH4)2CO3
- Leavening agent
- Acidity regulator
- Active ingredient in cough syrup
- Main component of smelling salts
- Ingredient in smokeless tobacco products
- Photographic lens cleaning agent
- Luring agent for apple maggots