Polyacrylamide
Polyacrylamide is a water-soluble polymer used in various applications, including water treatment and enhanced oil recovery.
Polyacrylamide
- CAS Number: 9003-05-8
- EINECS NO.: 201-173-7
- Molecular Formula: (C3H5NO)n
- Purity (%): Varies depending on the specific product, typically ranging from 90% to 99%
- Appearance: White or off-white crystalpowder, or as a clear, colorless liquid in some forms
- Packing: Available in various forms, including bags, drums, or bulk shipments, depending on the quantity and application requirements.
- Other Name: PAM; 2-Propenamide, homopolymer; Acrylamide polymer; poly(AAm)
Polyacrylamide Specification
| ITEMS | SPECIFICATIONS |
| Solid Content (%) :≥ | ≥90% |
| PH value (0.2% solution) | 2-14 |
| Molecular Weight 104 ≤ | 9-12 million |
| Dissoluble Time ( Hours ) | ≤ 1 |
| Water Insolubles | 0.2% max |
| Degree of hydrolysis | 10%-80% |
| ITEMS | SPECIFICATIONS |
| Molecular weight | 18-20 million |
| Degree of charge | 25-30 |
| PH of 0.5% Solution @ 25℃ | 6-8 |
| Residual Acrylamide ( ppm ) | MAX 1000 |
| Dissolving Time, minute | 60 max. |
| Shelf life (months)≤ | 24 |
| ITEMS | SPECIFICATIONS |
| Molecular weight:≥ | 9-12million |
| Solid content≥ | 90% min |
| Free monomer ≤ | 0.025% max |
| Dissolving time | 1.5h max |
| Water Insolubles | 0.3% max |
| Size ≤ | 20-10mesh |
| ITEMS | SPECIFICATIONS |
| Degree of charge, ( w/w ) % | 70-75 |
| Solid content≥ | 44-47 |
| Relative Molecular Weight, 106 | 8-10 |
| PH of 0.5% solution @ 25℃ | 3-9 |
| UL Viscosity, cps | 2.5-3.5 |
| Dissolving Time, minute | 30 max |
PAM Product Comparison Guide
| Type | Ionic Charge | Best for Wastewater Type | Main Use |
|---|---|---|---|
| APAM | Negative | Inorganic / mineral wastewater | Clarification, sedimentation |
| CPAM | Positive | Organic sludge | Sludge dewatering |
| NPAM | Neutral | Neutral or acidic wastewater | Special flocculation needs |
Types of Polyacrylamide
| Parameter | PAM Powder | PAM Emulsion |
|---|---|---|
| Physical Form | Dry powder / granule | Liquid emulsion |
| Active Content | ≥88% | 25–40% |
| Dissolution Time | 30–60 min | 5–10 min |
| Shelf Life | ~24 months | 6–12 months |
| Storage Stability | High | Medium |
| Logistics Cost | Low | Higher |
| Operational Flexibility | Medium | High |
What is Polyacrylamide used for
- Water treatment: Flocculant and coagulant for removing impurities.
- Erosion control: Reduces soil erosion and improves water infiltration.
- Enhanced oil recovery: Increases viscosity for improved oil displacement.
- Paper and pulp industry: Retention aid for improved paper production.
- Mining and mineral processing: Solid-liquid separation and wastewater treatment.
- Textile and dyeing industry: Sizing agent and dyeing auxiliary.
- Personal care and cosmetics: Thickener, stabilizer, and film-forming agent.
FAQ of Polyacrylamide
In water treatment, Polyacrylamide is used for flocculation, sludge dewatering, sedimentation, and solid-liquid separation. It improves treatment efficiency in municipal wastewater, industrial effluent, and raw water clarification systems.
The correct grade depends on factors such as water composition, pH value, sludge characteristics, and treatment process.
- Anionic PAM is typically used for inorganic wastewater
- Cationic PAM is suitable for organic sludge dewatering
- Non-ionic PAM is effective in neutral or mildly acidic conditions
Laboratory testing is recommended for optimal performance.
Selection depends on water composition, pH value, sludge characteristics, and treatment goals. Laboratory testing or on-site trials are strongly recommended to determine the optimal Polyacrylamide type and dosage.
Polyacrylamide is generally considered safe when used according to industrial guidelines. Proper handling, storage, and dosage control are required. Safety data and handling instructions are provided in the MSDS.
Polyacrylamide is packaged in 25 kg kraft paper bags with plastic liners.
Dry powder should be sealed and stored in a dry place, and its shelf life is usually up to 2 years; the shelf life of solution is shorter and should be used in time. High-concentration solution should be stored away from light.
Polyacrylamide Manufacturers
We offer a full range of polyacrylamide (PAM) products designed to solve the most challenging water treatment and industrial processing problems.
- Complete product range: Offering anionic (APAM), cationic (CPAM), and non-ionic (NPAM) products suitable for various water qualities.
- Customizable formulations: Adjustable molecular weight and charge density; customized solutions available based on specific pH, salinity, and sludge composition.
- Predictable results: Strict batch quality control ensures stable and reliable process performance, reducing downtime for end-users.
