... . In addition, it shows strong hydroscopic property.WITH THE REFERENCE OF HG/T23272004 CHINESE NATIONAL STANDARDS, PURITY 99% min Insoluble ... pp bag with pe film inside or the demanding of customer Applications:It is an important material inorganic for ... chemical, industry ,for light industry, machinery etc. Used in manufacture of nitric acid, fertilizer, medicine, gunpowder, explosive, glass, pigment, ...