... -1427-30≤0.05 More information:1) First with alkali then hydrolyzing technique, High purity and a fast dissolving speed; 2) Apparent viscosity ... for waste water treatment; industry sewage treatment, especially the sewage with high density, bit suspending granules, such as, the sewage of steel ... iron and steel work, electroplating factory metallurgy,coal washing,etc. high purity anionic polymer pam