Pure Ammonium Chloride is used in fertilizers as a nitrogen source. It is used in medicine as an expectorant. It is used in glue which helps to bond plywood. It is used in Leclanche cells in aqueous solutions.
Ammonium chloride is used as a flux in preparing metals to be tin coated, galvanized, or soldered. It is an expectorant in cough medicine and as a systemic acidifying agent in the treatment of severe metabolic alkalosis.