Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
Polyacrylamide
1. Basic Information
Name: Polyacrylamide
Abbreviation: PAM
CAS No.: 9003-05-8
Repeating Unit Formula: C3H5NO
Molecular Weight: Adjustable, ranging from millions to tens of millions
2. Physical and Chemical Properties
Physical Properties
- Appearance: White fine powder or translucent bead particles
- Odor: Odorless polymer solid
- Solubility: Soluble in H2O; slightly soluble in CH3OH; insoluble in C2H5OH, acetone, benzene and all aliphatic solvents
- Hygroscopicity: Moderately hygroscopic under high humidity environment
- Aqueous Characteristic: High-viscosity transparent aqueous solution with excellent flocculation, thickening and drag reduction performance
- Ionic Types: Anionic, Cationic, Nonionic, Amphoteric polyacrylamide
Chemical Properties
- Molecular Structure: Linear polymer formed by polymerization of acrylamide monomer, containing a large number of amide groups (-CONH2) on molecular chain
- Hydrolysis Performance: Amide groups hydrolyze under high temperature or strong alkaline conditions to generate carboxylate anions
- Crosslinking Characteristic: Can form crosslinked gel with metal ions or crosslinking agents
- Thermal Stability: Stable below 60 °C; long-term heating above 120 °C causes molecular chain degradation and viscosity reduction
- Photostability: Slow molecular degradation under long-term ultraviolet irradiation
- Compatibility: Anionic PAM incompatible with cationic surfactants and metal cations; cationic PAM incompatible with anionic substances
3. Main Application Fields
1. Wastewater Treatment Flocculant (Core Application)
- Anionic PAM: Sedimentation and dewatering for industrial wastewater, mineral tailings, river sludge
- Cationic PAM: Sludge dewatering for municipal sewage, printing & dyeing wastewater, food processing wastewater
2. Oilfield Chemical Auxiliary
Water injection drag reducer, fracturing fluid thickener, oil-water separation flocculant
3. Papermaking Industry Additive
Retention aid, filter aid, paper strength enhancer for pulp production
4. Textile, Mineral Processing & Construction
Textile sizing agent, mineral flotation agent, mortar thickener, soil stabilizer
4. Quality Specification Table
| Test Item | Standard Index |
| CAS Number | 9003-05-8 |
| Repeating Unit Formula | C3H5NO |
| Appearance | White powder/beads |
| Molecular Weight | Customized according to demand (5 million ~ 20 million) |
| Residual Acrylamide Monomer | Water treatment grade ≤0.05% |
| Water Content (KF) | ≤10.00% |
| Dissolution Time | ≤60 min |
| Heavy Metals (Pb1) | Drinking water grade ≤10 ppm |
| Packaging | 25kg PE lined woven bag / fiber drum |
| Storage Condition | Hermetically sealed in cool dry warehouse below 25 °C; avoid dampness and direct sunlight |
| Transportation Requirement | Hygroscopic polymer powder, moisture-proof sealed packaging |
| Shelf Life | 36 months under intact sealed packaging |
Safety Warning
Polymer dust irritates eyes and respiratory tract. Wear dust mask and protective goggles during feeding and mixing operations with good workshop ventilation. Avoid direct contact with strong acid and strong alkali to prevent hydrolysis degradation. Waste PAM solid can be landfilled after harmless treatment; waste aqueous solution can be diluted and discharged after flocculation precipitation.
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