It is the white powder. The APAM with the molecular weight of 4,000,000-26,000,000 has good water solubility, and it can be dissolved in water by arbitrary proportion but not in organic solvents. It has the characteristics of high-polymer electrolyte in the neutral and alkaline medium, and it is sensitive to the electrolyte salt. And it can be cross-linked into insoluble gel with the high valence metal ions. Application area:(1) Industrial waste water treatment(2) Drinking water treatment(3)recycling of the loss of brewers' grains in the alcohol plant and starch in the starchfactory.(4)used as the water block agent in the oil field(5)Paper-making industry.