Product | Crospovidone Type A | Crospovidone Type B |
Appearance | White or yellowish-white powder or flakes | |
Identifications | Meet ID Tests | |
Solubility | Practically insoluble in water,in alcohol and in methylene chloride | |
Water- soluble substances | 1.0% max | 1.0% max |
pH((1% in water) | 5.0 -8.0 | 5.0 -8.0 |
Loss on Drying | 5.0% max. | 5.0% max. |
Sulphated Ash | 0.1% max. | 0.1% max. |
Nitrogen content | 11.0 -12.8 % | 11.0 -12.8 % |
Impurity A | 10 ppm max. | 10 ppm max. |
Peroxide(As H2O2) | 400 ppm max. | 1000 ppm max. |
Heavy Metal | 10 ppm max. | 10 ppm max. |
Particle Size(μm), ≥80% | 50-300 | 5-50 |
TEST ITEMS | SPECIFICATIONS | TEST VALUE |
Appearance | White powder | Complies |
Soluble components % | < 1.5 | 0.29 |
Loss on drying % | ≤ 5.0 | 3.25 |
N-vinylpyrrolidone ppm | ≤ 10 | < 10 |
PH value (1% in water) | 5-8 | 6.85 |
Arsenic ppm | ≤ 3 | < 3 |
Moisture % | < 5.0 | 3.59 |
Sulfateash % | < 0.2 | 0.035 |
Nitrogen content % | 11.0-12.8 | 11.65 |
Heavy metal (as Pb) ppm | ≤ 10 | < 10 |
Peroxides(as H2O2) ppm | ≤ 400 | < 400 |
Product | PVPP(One way) | PVPP(Regenaration) |
Appearance | White to off-white,hygroscopic,free-flowing powder | |
Nitrogen Content | 11.0-12.8% | 11.0-12.8% |
Lead | 2 ppm max. | 2 ppm max. |
Arsenic | 3 ppm max. | 3 ppm max. |
Heavy Metals | 10 ppm max. | 10 ppm max. |
pH(1% Suspension) | 5.0-8.0 | 5.0-8.0 |
Residue on Ignition | 0.4% max. | 0.4% max. |
Peroxides | 400 ppm max. | 400 ppm max. |
N-Vinylpyrrolidone | 10 ppm max. | 10 ppm max. |
N,N'-Divinyl-imidazolidone | 2pp max. | 2 ppm max. |
Water-Soluble substance | 0.5% max. | 0.5% max. |
Acid/Ethanol Soluble substances | 1.0% max. | 1.0% max. |
Water | 5.0% max. | 5.0% max. |
Particle Size | Based on Data Sheet | Based on Data Sheet |