Any anionic PAM product used for erosion and sediment control on a construction site should adhere to the following criteria. Anionic PAM is the active ingredient. Only products using water soluble anionic PAM as the active polymer ingredient should be used. Products containing a synthetic cationic polymer or chitosan should not be used due to their higher toxicity to aquatic organisms.Site Specific Performance Testing. The manufacturers of anionic PAM-based products typically offer more than one formulation of a given product, with different formulations varying in the relative amounts of PAM and other additives. Different formulations are designed to bind different soil types. Samples of water to be treated and sediment from the site should be tested with the various products and formulations available to determine which will be most effective for the desired application. High molecular weight. The anionic PAM used in the product should have a molecular weight between 6 and 24 mg/mol, with 12 to 15 mg/mol preferred. Emulsion forms of anionic PAM should be avoided. Residual acrylamide content less than 0.05%. | Anionic polyacrylamide Apam index | ||||||
| Molecular weight(million) | Appearance | Water solubility % | PH application range | Solid content % | Solution rate Min | Residual monomer content % |
| 10-12 | White particle powder | 10-15 | 5-14 | ≥89 | ≤60 | ≤0.05 |
| 14-16 | White particle powder | 25-30 | 5-14 | ≥89 | ≤60 | ≤0.05 |
| 15-18 | White particle powder | 25-30 | 5-14 | ≥89 | ≤60 | ≤0.05 |
| 17-20 | White particle powder | 25-30 | 5-14 | ≥89 | ≤60 | ≤0.05 |
| 20-30 | White particle powder | 22-30 | 5-14 | ≥89 | ≤60 | ≤0.05 |
Ningxia Yongruida Carbon Co,.Ltd was founded in
2003.With an area of over 50000 square meters ,our
factory is located in the city of Shizuishan Ningxia .
