| Place of Origin: | CHINA |
|---|---|
| Brand Name: | AJA |
| Certification: | COA,MSDS |
| Model Number: | Industry grade |
| Minimum Order Quantity: | 25kg |
| Price: | USD8.5-15/KG |
| Packaging Details: | 25kg per fiber drum |
| Delivery Time: | 5-10 days |
| Payment Terms: | L/C, T/T |
| Supply Ability: | 1000 Tons per year |
| CAS: | 9003-39-8 | K Value: | 12.8-17-.2 |
|---|---|---|---|
| Moisture: | 0.5% Max | PH(5% Solution): | 3.0-7.0 |
| Highlight: | Polyvinylpyrrolidone PVP K15,Water Soluble Polymer PVP K15,Polyvinylpyrrolidone K15 Powder |
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Water-Soluble Polymer Polyvinylpyrrolidone PVP K15 For Water Treatment Membrane
Polyvinylpyrrolidone (PVP) is a water-soluble linear polymer compound formed by the homopolymerization of monomer N-vinylpyrrolidone (NVP). It has functions such as colloid protection, film-forming, adhesion, hygroscopicity, solubilization or coagulation, and complexing ability with certain compounds. Polyvinylpyrrolidone has both hydrophilic and oleophilic groups within its molecule, making it soluble in both water and most organic solvents (such as alcohols, carboxylic acids, amines, halogenated hydrocarbons, etc.), with low toxicity and good physiological compatibility. The solubility of polyvinylpyrrolidone in water is only limited by its own viscosity.
No |
Tests | K15 | K17 | K25 | K30 | K90 |
| 1 | Identification, A B C D E | Complies | ||||
| 2 | Appearance of solution | Clear, ≤B6,BY6 or R6 | ||||
| 3 | PH(in 5% solution) | 3-5 | 3-5 | 3-5 | 3-5 | 4-7 |
| 4 | Viscosity, as K-value | 13-17 | 14.5-19.5 | 22.5-27 | 27-32.4 | 81-97 |
| 5 | Aldehyde, ppm | ≤500 | ≤500 | ≤500 | ≤500 | ≤500 |
| 6 | Peroxides (as H2O2), ppm | ≤400 | ≤400 | ≤400 | ≤400 | ≤400 |
| 7 | Formic acid,% | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 |
| 8 | Hydrazine, ppm | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 |
| 9 | Impurity A (VP),ppm | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 |
| 10 | Impurity B (2-pyrrolidone ),% | ≤3.0 | ≤3.0 | ≤3.0 | ≤3.0 | ≤3.0 |
| 11 | Heavy metals, ppm | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 |
| 12 | Water, % | ≤5.0 | ≤5.0 | ≤5.0 | ≤5.0 | ≤5.0 |
| 13 | Sulphated ash,% | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 |
| 14 | Assay, as Nitrogen content,% | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 |
