Anionic Polyacrylamide APAM
Anionic polyacrylamide (APAM) appears as white powder with a molecular weight ranging from 3 million to 25 million. It has good water decomposition properties and can be dissolved in water and insoluble in organic solvents. The effective pH value range is 6 to 10. It has the characteristics of a high polymer electrolyte in a neutral alkaline medium, is sensitive to salt electrolytes, and can cross-link with high-valent metal ions to form an insoluble gel.
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Anionic polyacrylamide (APAM) appears as white powder with a molecular weight ranging from 3 million to 25 million. It has good water decomposition properties and can be dissolved in water and insoluble in organic solvents. The effective pH value range is 6 to 10. It has the characteristics of a high polymer electrolyte in a neutral alkaline medium, is sensitive to salt electrolytes, and can cross-link with high-valent metal ions to form an insoluble gel.
| Anionic polyacrylamide（APAM） | ||||
| Model | Dissolution Time | Ionization degree | Molecular weight | Applications |
| 1825 Bestsellers account for 70-80% |
≤60Min | 25 | 16~18million | Generally used in conjunction with PAC in the flocculation and sedimentation phase of wastewater treatment in industrial, municipal, and manufacturing enterprises, it is the best-selling and most widely used basic product on the market. |
| 1880 | ≤60Min | 29 | 13~15million | Suitable for sand washing, coal washing, and mineral processing industries with high production volumes, high on-site wastewater concentration (around 35%~60%), and insufficient reaction distance and time for reagents. (Special cases, specifically for difficult problems, but with limitations) |
| 1890 | ≤60Min | 33 | 6~8million | High-concentration sludge water (over 60%), such as piling sludge and tunnel mud. |
| 1810 | ≤90Min | 10 | 10~12million | Suitable for belt filter press processes in situations with large wastewater treatment volumes and insufficient dissolution time (e.g., coal washing, sand washing, and mineral processing industries). |
| 1815 | ≤90Min | 15 | 14~15million | The product performs the same as the 1810 model, but requires a smaller dosage. It is suitable for industries with water quality where the water contains fine impurities, such as coal washing wastewater, sand washing wastewater, and tailings wastewater. |
| 1832 | ≤45Min | 32 | 15~17million | Tailings treatment applicable to rare metal mineral development |
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Anionic polyacrylamide (APAM) appears as white powder with a molecular weight ranging from 3 million to 25 million. It has good water decomposition properties and can be dissolved in water and insoluble in organic solvents. The effective pH value range is 6 to 10. It has the characteristics of a high polymer electrolyte in a neutral alkaline medium, is sensitive to salt electrolytes, and can cross-link with high-valent metal ions to form an insoluble gel.
Anionic Polyacrylamide Selection and Procurement Notes
Anionic polyacrylamide is widely used for inorganic suspended solids, mineral processing, coal washing, sand washing, river silt treatment, and industrial wastewater clarification. It provides adsorption bridging, floc growth, fast settling, and improved water clarity when the charge demand matches the wastewater conditions.
- Typical use: sedimentation tanks, thickeners, clarifiers, tailings treatment, and process water recycling.
- Testing method: compare different molecular weights and hydrolysis degrees with real water samples, not only clear-water simulation.
- Procurement support: sample testing, dosage guidance, packaging, COA, and MSDS can be provided.
FAQ
Where is APAM most commonly used?
APAM is commonly used in mining, coal washing, sand washing, construction wastewater, and many inorganic suspended solids systems.
What affects APAM performance?
pH, salinity, suspended solids concentration, mixing strength, dissolution quality, and coagulant compatibility all affect performance.
Can APAM be used with PAC?
Yes, APAM is often used after coagulants such as PAC, but the dosing sequence and dosage should be tested.
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Send your wastewater or sludge source, treatment process, equipment type, and target result. Xinqi Polymer can recommend cationic, anionic, or nonionic polyacrylamide grades for real water testing.
