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Suppliers for
Poly(N-vinyl-2-pyrrolidone)
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Properties | | CAS |
9003-39-8 | | Formula |
(C6H9NO)n |
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1 Registered suppliers
| Appearance | A white or almost white powder, odourless or slightly characteristic odour; tasteless; hygroscopic
| | Solubility | Soluble in water, in ethanol in isopropanol and in chloroform, insoluble in acetone and ether
| | Identification |
| | A | IR
| | B | An organge yellow precipitate is formed
| | C | A pale blue precipitate is formed
| | D | A deep red color is produced
| | E | The substance dissolves
| | Appearance of solution | Solution S is clear and not more intensely colored than reference solution B6, BY6 or R6
| | Nitrogen content | 11.5-12.8%
| | Residue on ignition | ≤ 0.1%
| | Lead | ≤ 10ppm
| | Aldehydes | ≤ 0.05%
| | K-valueL | 27.0-32.0
| | Hydrazine | ≤ 1ppm
| | N-vinyl pyrrolidone | ≤ 0.001%
| | 2-pyrrolidone | ≤ 3.0%
| | Peroxides | ≤ 400ppm
| | Formic acid | ≤ 0.5%
| | PH(50mg/ml in water) | 3.0-5.0
| | Water | ≤ 5.0%
| | K-Value | 27.0-32.4
| | TAMC | ≤ 1000cfu/g
| | TYMC | ≤ 100cfu/g
| | Staphylococcus aureus | Negative
| | Salmonella | Negative
| | Pseudomonas aeruginosa | Negative
| | E.Coli | Negative |
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Last update 2024-04-26
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