Pharmaceutical grade Povidone K90 (PVP K90, Polyvinylpyrrolidone K90, CAS 9003-39-8) USP/EP standard is a high molecular weight water-soluble polymer with outstanding film-forming, thickening and binding properties, widely used as pharmaceutical excipient and cosmetic raw material. TNJ Chemical is a professional manufacturer and exporter since 2001. We guarantee high quality products, competitive price and thoughtful service. If you want to buy or have any other inquiries, please contact sales@tnjchem.com
Product Information
CAS 9003-39-8
Formula (C₆H₉NO)ₙ
Synonym PVP K90, Polyvinylpyrrolidone
Appearance White to off-white hygroscopic powder
Chemphysical Properties
Solubility: Freely soluble in water and ethanol
K value: 81.0 ~ 97.2
pH (5% aqueous solution): 3.0–7.0
Character: Good film-forming, thickening and adhesive performance
Quality Specification
| Test Item | K12 | K15 | K17 | K25 | K30 | K90 |
|---|---|---|---|---|---|---|
| K value | 10.2-13.8 | 12.75-17.3 | 15.3-18.4 | 22.5-27.0 | 27-32.4 | 81-97.2 |
| Vinylpyrrolidone (Impurity A) USP26, % max | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Vinylpyrrolidone (Impurity A) (USP36/EP6), ppm max | 10 | 10 | 10 | 10 | 10 | 10 |
| Moisture, % max | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
| Solid content, % min | 95 | 95 | 95 | 95 | 95 | 95 |
| pH value (5% aqueous solution) | 3.0-5.0 | 3.0-5.0 | 3.0-5.0 | 3.0-5.0 | 3.0-5.0 | 4.0-7.0 |
| Sulphate Ash, % max | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Nitrogen content, % | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 |
| 2-Pyrrolidone (Impurity B), % max | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
| Aldehyde (as acetaldehyde), ppm max | 500 | 500 | 500 | 500 | 500 | 500 |
| Heavy metal (as Pb), ppm max | 10 | 10 | 10 | 10 | 10 | 10 |
| Hydrazine, ppm max | 1 | 1 | 1 | 1 | 1 | 1 |
| Peroxide (As H₂O₂), ppm max | 400 | 400 | 400 | 400 | 400 | 400 |
Application & Use
Pharmaceutical: Tablet binder, sustained-release matrix, solubilizer, stabilizer for liquid preparations
Cosmetics: Film former & styling agent for hair spray, hair gel, sunscreen and skincare
Other: Stabilizer for coatings, inks, agrochemical suspensions; raw material for Povidone-Iodine
Packing Delivery & Storage
Package: 25kg cardboard drum with PE inner bag
Storage: Keep sealed in cool dry ventilated warehouse, protect from moisture
Transport: Avoid heavy rain and package damage
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