1, Category: Polyacrylamide is one main kind of organic flocculant in waste water treatment or sewage treatment chemicals or sludge dewatering. There are colloid and powder agent of this product. It can be devided into non-ion type and aion type(also called part hydeolysate) 2, Formular: Molecular weight 8, 000, 000-16, 000, 000 Solid amount (%) ≥90 Residual monomer (%) ≤0. 05 Degree of hydrolysis (%) ≤1. 0(non-ionic)3-30(anion/cation) Granularity (mesh) 20-80 Water solubility(h) ≤4. 0(non-ionic)≤3. 0(anion) Appearance：White granule The product is packed in two-layer plastic woven bag with the interior in plastic and the exterior in woven and membrane. The net weight of each bag is 25 Kg. 3, Physical characteristics: Low viscosity, good solubility, low energy consumption, excellent shear resistance, no toxicity, no powder pollution, no damage to body health, excellent fluidity, easy to handle, especially suitable for automatic addition and production. 4, Function: The colloid product is mainly non-ion type which is used in petroleum exploration, textile, chemical, painting and sewage treatment, etc. The powderagent is mainly aion type.