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POLYVINYL PYRROLIDONE K25 For Synthesis
average molecular weight 24000 Conforms to USP
| Article No. | Grade | Purity | CAS No. | Molecular Formula | Molecular Weight | H.S. Code | Shelf Life |
|---|---|---|---|---|---|---|---|
| SC2434 | For Synthesis | 9003-39-8 | (C6H9NO)n | ~ 24000 | 3905.9910 | 60 Months |
Packings
| 500 g,5000 g |
Physical Properties
| Physical state at 20 °C | Solid |
| Colour | White to yellowish |
| Melting point/ Freezing point [°C] | 220 (decomposes) |
| Auto-ignition temperature [°C] | 440 |
| Relative density, liquid (water=1) | 1.2 g/cm3 at 20°C |
Specifications
| Appearance | White to yellowish white hygroscopic powder or flakes |
| K-value | 23.0-27.0 |
| Identification as per USP | Complies |
| Residue on ignition | Max 0.1% |
| pH (5% solution) | 3.0 -7.0 |
| Water (H2O) | Max 5.0% |
| Lead (Pb) | Max 0.001% |
| Aldehydes | Max 0.05% |
| Hydrazine (N2H4) | Max 0.0001% |
| Vinylpyrrolidone | Max 0.001% |
| Nitrogen content (as N) | 11.5-12.8% |
Safety Information and Hazard Symbols
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