Polyvinylpyrrolidone
CAS: 9003-39-8
Category: Polymers
| Purity | Pharmaceutical Grade ≥99.0%, Cosmetic Grade ≥99.0%, Food Grade (E1201) ≥99.0%, Industrial Grade ≥95. |
| Molecular Formula | (C6H9NO)n |
| Molecular Weight | Variable (average molecular weight depends on K-va |
| Appearance | White or creamy-white hygroscopic powder, odorless or with a slight characteristic odor, freely soluble in water and many polar organic solvents |
| Packaging | 25 kg kraft paper bags with polyethylene inner lining, 25 kg fiber drums, 500 kg or 1000 kg bulk bags, customized moisture-proof packaging available |
| Testing Indicators | Appearance — Visual inspection; Identification — Infrared spectroscopy (FTIR); K-value determination — Capillary viscometry according to USP/NF or ISO standards; Molecular weight distribution — Gel permeation chromatography (GPC); Water content — Karl Fischer titration (USP <921>); Residue on ignition — Gravimetric analysis (USP <281>); pH — Potentiometric measurement of aqueous solution; Nitrogen content — Kjeldahl method; Heavy metals — ICP-MS or atomic absorption spectroscopy; Microbial limits — USP <61>/<62> for pharmaceutical and food grades. |
| Storage Notes | Store in a cool, dry, well-ventilated warehouse away from direct sunlight and moisture. Keep containers tightly sealed because PVP is hygroscopic and can absorb atmospheric moisture. Avoid contamination with strong acids, strong bases, and oxidizing agents. Store at room temperature under dry conditions. |
| Lead Time | 10 days |
Polyvinylpyrrolidone (PVP) is a water-soluble synthetic polymer widely used in pharmaceutical, cosmetic, food, and industrial applications. It is used as a binder in tablet manufacturing, film-forming agent, stabilizer, thickener, solubilizer, dispersant, and excipient in pharmaceutical formulations. In cosmetics, it is applied in hair styling products, skincare formulations, and personal care products. Industrial applications include adhesives, coatings, inks, detergents, and polymer modification.