CAS number: 9003-39-8
Molecular formula: (C6H9NO)n
molecular weight: 111.143
Chemical structure:
Product name | PVP K17 | |
Shelf life | Three years | |
Inspection Standard | EP7.2 | |
Items | Specifications | Results |
Appearance | White or yellowish-white,hygroscopic powder or flakes. | Complies |
Identification | IR | Complies |
The substance dissolves. | Complies | |
Appearence | Solution S is clear and not more intensely coloured than reference solution B6,BY6or R6 | Complies |
pH(1.0g→20.0ml) | 3.0 ~ 5.0 | 3.97 |
Viscosity (as K Value) | 15.3~18.4 | 17 |
Aldehydes | ≤ 500ppm | 33ppm |
Peroxides (as H2O2) | ≤ 400ppm | 34ppm |
Formic Acid | ≤ 0.5% | 0.1% |
Hydrazine | ≤ 1ppm | <1ppm |
ImpurityA(Vinylpyrrolidone) | ≤ 10ppm | 9.22ppm |
Impurity B (2-pyrrolidone) | ≤ 3.0% | 1.2% |
Heavy Metals | ≤ 10ppm | <10ppm |
Water | ≤ 5.0% | 2.91% |
Sulphated Ash | ≤ 0.1% | 0.04% |
Assay(Nitrogen) | 11.5~12.8% | 12.05% |
Bacterial endotoxines | ≤ 0.1EU/mg | 0.07EU/mg |
TAMC | ≤ 1000 cfu/g | <100cfu/g |
TYMC | ≤ 100 cfu/g | <100cfu/g |
Staphylococcus Aureus | Negative in 1g | Negative |
Salmonella | Negative in 10g | Negative |
Pseudomonas Aeruginosa | Negative in 1g | Negative |
E. Coli | Negative in 1g | Negative |
The product complies with EP7.2 standard. |