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1.pvp/k90 physical properties:
pvp exists as powder or aqesous solution .it can dissolve in water and cariety of organic solvent. It is generally used in cosmetics,surfactants,surtactants,pharmaceutical industry and other related insudtial fields.
2.pvp/k90 specification
1).technical grade
| product name | K value | vinylpyrrolidone % | moisture % | ash% | solid% | PH (10% water) |
| pvpk90 | 88-96 | <0.2 | <5.0 | <0.02 | 95 | 5-9 |
2).pharmaceutical grade(USP/EP)
| product | k value | vinylpyrrolidone%(iodometric) | moisture%(K.fischer%) | sulfate ash % | ph(10% in water) | nitrogen | aldehyde(10% in acetaldehye%) | heavy interms of as pb.% | hydrazine metal(ppm) | peroxide (ppm as H2O2) |
| k90 | 81-97 | <0.1 | <5.0% | <0.1 | 3-7 | 11.5-12.8 | <0.05 | <0.001 | <1 | <400 |
3.PVP/K90 application
Cosmetics:
PVPk series can be used as film-forming agent, viscosity-enhancement agent, lubricator and adhesive .They are the key component of hair sprays mousse gels and lotions & solution. They are also convenience assistant in skin-care product, hair-dying reagent, shampoo, eye makeup, lipstick, deodorant, sunscreen and dentifrice.
Pharmaceutical:
Povidone K30 is a new and excellent pharmaceutical excipient. It is mainly used as binder for tablet, dissolving assistant for injection, flow assistant for capsule, dispersant for liquid medicine and pigment, stabilizer for enzyme and heat sensitive drug, co precipitant for poorly soluble drugs /lubricator and antitoxic assistant for eye drug PVP has been used as excipients in more than one hundred drugs/ Pharmaceutical grade PVPK30 has officially been permitted by China National Drug Administration to be sold in China Market.
Other Utility: Suspensant disperser and emulsifier Paint and coating
Plastics and resin Adhesive
Glass fiber Film
Ink TV tube
Detergent Biocide
Tabulating assistant Textile dyeing and printing
pvp/k90