law://eu/reg/2012/231/anx_1__grp_376@2026-11-12| Synonyms | Copolyvidon; copovidone; 1-vinyl-2-pyrrolidone-vinyl acetate copolymer; 2-pyrrolidinone, 1-ethenyl-, polymer with ethenyl acetate |
| Definition | It is produced by free radical copolymerisation of N-vinyl-2-pyrrolidone and vinyl acetate in solution in propan-2-ol, in the presence of initiators. |
| Einecs | |
| Chemical name | Acetic acid, ethenyl ester, polymer with 1-ethenyl-2-pyrrolidinone |
| Chemical formula | (C6H9NO)n.(C4H6O2)m |
| Average Viscosity Molecular Weight | Between 26000 and 46000 g/mol. |
| Assay | Nitrogen content 7,0-8,0 % |
| Description | The physical state is described as a white to yellowish-white powder or flakes with an average particle size of 50-130 μm. |
| Solubility | Freely soluble in water, ethanol, ethylene chloride and ether. |
| Infrared absorption spectroscopy | To be identified |
| European Colour Test (BY Colour) | Minimum BY5 |
| K-valuenote (1 % solids in aqueous solution) | 25,2-30,8 |
| pH value | 3,0-7,0 (10 % aqueous solution) |
| Vinylacetate component in copolymer | Not more than 42,0 % |
| Free vinyl acetate | Not more than 5 mg/kg |
| Total ash | Not more than 0,1 % |
| Aldehyde | Not more than 2000 mg/kg (as acetaldehyde) |
| Free-N-vinylpyrrolidone | Not more than 5 mg/kg |
| Hydrazine | Not more than 0,8 mg/kg |
| Peroxide content | Not more than 400 mg/kg |
| Propan-2-ol | Not more than 150 mg/kg |
| Arsenic | Not more than 3 mg/kg |
| Lead | Not more than 2 mg/kg |
| Mercury | Not more than 1 mg/kg |
| Cadmium | Not more than 1 mg/kg |
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