This product is a multi-nitrogen-containing organic acid and a cathodic corrosion inhibitor, as compared with inorganic polyphosphate, Inhibition chlorine high 3 to 5 times. Miscible with water. Non-polluting non-toxic, chemical stability and good temperature, 200 degrees of the scale there is a good effect. Widely used in circulating water and boiler water scale and corrosion inhibitor, cyanide-free electroplating agent. Textile printing and dyeing industry chelator and oxygen bleaching stabilizer