Polyvinylpyrrolidone, M.W. ∼ 1.300.000 (K85-95)
Marques : Thermo ScientificTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
Formule:
(C₆H₉NO)n Température de stockage: Température ambiante |
Numéro MDL:
MFCD01076626 Numéro CAS: 9003-39-8 |
Résultats des tests de spécification
Appearance | White to cream Powder |
Infrared spectrum | Conforms |
Water | ≤5 % (K.F.) |
Sulfated ash | ≤0.1 % |
Appearance of solution | (5 % in water at 25°C) Free of haze |
Appearance of solution | (5 % in water at 25°C) Colorless to light yellow |
Appearance of solution |
European color test (B color): |
Appearance of solution |
European color test (BY color): |
Identification | Positive |
Viscosity | 85 to 95 (K-value) (1 % w/v solids in water) |
pH | 4 to 7 (5 % in water) |
Nitrogen (N) | 12 to 12.8 % |
Heavy metals (as Pb) | ≤10 ppm |
Impurity | ≤10.0 ppm Vinyl pyrrolidone |
Aldehyde (C2H4O) | ≤0.05 % |
Hydrazine (N2H4) | ≤1 ppm |
Peroxides | ≤400 ppm (Titanyl sulphate method) |
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