Used as agricultural fertilizer. In the chemical industry, it is used to manufacture various ammonium salts, as an aminating agent in organic synthesis, and as a catalyst for producing thermosetting phenolic resins. In the textile industry, it is applied in wool spinning, silk and dyeing & printing processes, for degreasing and decontaminating wool, woolen fabrics and grey cloth, as well as for dyeing assistance and pH adjustment. It is also used in pharmaceuticals, tanning, thermos flask production (silver plating solution preparation), and the alkalization of rubber and grease.