Product Description
Basic Information for Polyvinylpyrrolidone / PVP Powder Povidone K30 K90 K15 K17 K25 CAS 9003-39-8:
1. Basic Information
Chemical Name: Polyvinylpyrrolidone
Common Acronym: PVP
Other Names: Povidone (Pharmacopeial name), Polyvidone
CAS Registry Number: 9003-39-8
Chemical Structure: A water-soluble synthetic polymer composed of repeating N-vinylpyrrolidone monomer units. It is typically characterized by its K-value (a viscosity-based index related to its average molecular weight, e.g., PVP K30).
2. Key Characteristics
Appearance: White to creamy-white hygroscopic powder or flakes.
Solubility: Freely soluble in water and various polar organic solvents (e.g., alcohols, chloroform).
Key Properties: Excellent film-forming, adhesive, suspending, and dispersing capabilities. It is physiologically inert, non-toxic, and exhibits strong complexation with many substances.
Stability: Chemically stable, though hygroscopic. Compatible with a wide range of other chemicals.
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| Test Items |
Specification |
| Appearance |
White to milky white powdery solid |
| Identification A.B.C. |
Positive |
| K value |
27-32 |
| Moisture,% |
≤5.0 |
| Residue on ignition,% |
≤0.1 |
| PH of 5% aqueous solution |
3.0-7.0 |
| 1-Vinylpyrrolidin-2-one,% |
≤0.1 |
| Nitrogen,% |
11.5-12.8 |
| Aldehyde,% |
≤0.05 |
| Heavy metal,ppm |
≤10 |
| Hydrazine,ppm |
≤1.0 |
| Peroxide,ppm |
≤400 |
Primary Application Directions of Polyvinylpyrrolidone / PVP Powder Povidone K30 K90 K15 K17 K25 CAS 9003-39-8:
PVP is a versatile, multi-industry polymer additive valued for its modifying and stabilizing properties.
Healthcare:
Excipient: Used as a binder, coating agent, solubilizer, and stabilizer in tablets, capsules, and oral solutions.
Disinfectant Carrier: The key polymer component in povidone-iodine (PVP-I) antiseptics.
Personal Care & Cosmetics:
Hair Care: Primary film-forming agent in hairsprays, mousses, and gels.
Skincare & Makeup: Used in creams, mascara, and nail polishes as a thickener, stabilizer, and film-former.
Industrial & Technical:
Adhesive & Binder: In adhesives, ceramics, and agrochemical formulations.
Dispersant & Stabilizer: For pigments in inks, paints, and in emulsion polymerization (e.g., PVC production).
Food & Beverage:
Clarifying Agent: Used to stabilize and clarify beer, wine, and juices by binding polyphenols (food-grade PVP).
Other Applications: Detergent additive (anti-redeposition agent), photography, electronics, and as a reagent in laboratory settings.
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