Ammonium chloride is an inorganic chemical compound with the chemical formula NH4Cl, also written as Cl. It is an ammonium salt of chloride. It consists of ammonium cations + and chloride anions Cl−.

Hydrochloric acid, also known as muriatic acid or spirits of salt, is an aqueous solution of hydrogen chloride. It is a colorless solution with a distinctive pungent smell. It is classified as a stron