Polyvinylpyrrolidone
Povidone
- CAS
- 9003-39-8
- EC
- 618-363-4
- Sectors
- Pharma & Healthcare, Personal Care & Cosmetics, Food & Nutrition
Polyvinylpyrrolidone (CAS 9003-39-8) is a non-ionic synthetic polymer from N-vinylpyrrolidone monomers, supplied as a white hygroscopic powder that dissolves readily into clear aqueous solutions, and it is used as a tablet binder in granulation, a hold agent in hair styling gels and a fining aid in wine clarification.
Typical Properties
| Molecular formula | (C6H9NO)x |
|---|---|
| Molecular weight | 16.0425 g/mol |
| Appearance | white powder |
| Form | powder |
| Color | White to yellow-white |
| Melting point | 82 °C |
| Boiling point | >300 °C |
| Density | 1.23-1.29 g/cm³ |
| Water solubility | Soluble in water. |
| pH | 3.0-5.0 |
| HS code | 39059990 |
| Grades available | Food Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Polyvinylpyrrolidone
Applications
Serves as binders in tablet granulation; in hair styling gels for hold; in wine fining for clarity; in inkjet inks for viscosity control; and in membrane filters for pore size tuning.
Safety & Risks
Inert with minimal absorption; dust eye irritation possible. Pharmaceutical grade requires impurity controls; use ventilated booths for powder weighing operations.
Packaging
Bagged in 20 kg antistatic polyethylene sacks with zip ties. Keep in polymer-dedicated dry zones with static grounding.