Anionic polyacrylamide
Test items | Specified technical indicators | Results of testing |
Exterior | Solid granular | Solid granular |
Molecular weight (ten thousand) ≥ | 12 million | 12.3 million |
Solid content (%) ≥ | 90 | 92 |
Dissolution time (m) ≤ | 60 | 55 |
Water insoluble matter () ≤ | 0.3 | 0.25 |
Sulfate content /% ≤ | 0.5 | 0.5 |
Sulfate content /% ≤ | 1.0 | 0.8 |
Cationic polyacrylamide
Test items | Specified technical indicators | Results of testing |
Exterior | White granular | White granular |
Ion degree ω / （%） | 60 | 60 |
Solid content ω1 / （%） ≥ | 88 | 92 |
Dissolution time (1g / L), t / min ≤ | 60 | 55 |
Dissolution time(1g/L),t/min ≤ | 0.3 | 0.25 |
Water insoluble matter ω2 /% ≤ | 0.05 | 0.048 |
Sulfate content ω4 / （g / g） ≤ | 0.05 | 0.048 |
Nonionic polyacrylamide
Test items | Specified technical indicators | Results of testing |
Exterior | Solid powder | Solid powder |
Molecular weight(ten thousand) | 12 million | 12.2 million |
Solid content (%) ≥ | 90 | 91 |
Dissolution time (m) ≤ | 60 | 42 |
Water insoluble matter(%) ≤ | 1 | 0.5 |
Chloride content /% ≤ | 0.5 | 0.5 |
Sulfate content /% ≤ | 1.0 | 0.8 |
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