| Synonyms | Povidone |
| PVP |
| Soluble polyvinylpyrrolidone |
| Definition | |
| Chemical name | Polyvinylpyrrolidone, poly-[1-(2-oxo-1-pyrrolidinyl)-ethylene] |
| Chemical formula | (C6H9NO)n |
| Molecular weight | Not less than 25 000 |
| Assay | Content not less than 11,5 % and not more than 12,8 % of nitrogen (N) on the anhydrous basis |
| Description | White or nearly white powder |
| Identification | |
A.Solubility | Soluble in water and in ethanol. Insoluble in ether |
B.pH of a 5 % solution | Between 3,0 and 7,0 |
| Purity | |
| Water | Not more than 5 % (Karl Fischer) |
| Total ash | Not more than 0,1 % |
| Aldehyde | Not more than 500 mg/kg (as acetaldehyde) |
| Free-N-vinylpyrrolidone | Not more than 10 mg/kg |
| Hydrazine | Not more than 1 mg/kg |
| Lead | Not more than 5 mg/kg |
