Ammonium persulfate is a white singlecrystal with a density of 1.98.Ammonium persulfate acts as a polymerization initiator in polymer chemistry. Ammonium persulfate dissolves in water and decomposes by heat. With its strong oxidizing properties, it can be used as an etchant and cleaner in the manufacture of printed circuit boards. Ammonium persulfate is a non-flammable substance, but it must be stored under specific conditions because it can release oxygen and thus exert a combustion-supporting effect. Customized big particle size Ammonium Persulfate is supportable.