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Approximate molecular weights of different grades of PVP [9].
| Grade with K-value | Approximate molecular weight (Daltons) |
|---|---|
| PVP K-12 | 2500 |
| PVP K-15 | 8000 |
| PVP K-17 | 10,000 |
| PVP K-25 | 30,000 |
| PVP K-30 | 50,000 |
| PVP K-60 | 4,00,000 |
| PVP K-90 | 10,00,000 |
| PVP K-120 | 30,00,000 |
