1. Cationic Polyacrylamide 2. Anionic Polyacrylamide 3. Non-ionic polyacrylamide 4. Zwitterionic Polyacrylamid Appearance: White particles Solid Content: no less than 90 Pourcent Dissolving Time: less than 60 minutes The products have been widely used to purify the water for domestic use, industry, urban use, industrial waste water, and have been applied to water injection system, pulp, leather, cosmetics, coal washing and other chemical w