Technical Grade Polyvinylpyrrolidone PVP K30 Povidone
Product Name: Polyvinylpyrrolidone
Chemical Description: Homopolymer of 1-Vinly-2-Pyrrolidone,Polyvinylpyrrolidone
INCI/CTFA: PVP
Pharmacopeia Name: Povidone(Povidonum)
CAS NO.: 9003-39-8
Formula structure:
Product Properties
Povidone is a hygroscopic polymer ,supplied in white or creamy white powder or flakes,ranging from low to high viscosity & low to high molecular weight,which characterized by K Value.Its easily soluble in water and many other organic solvents,with excellent hygroscopisty,film-forming,adhesive,chemical stability and toxicological safeness characters.
Applications
Pharmaceutical Grade PVP
Povidone is one of the most important excipient in the worldwide for pharmaceutical industry,whatever for human health care products and animal health care products.Its more and more used as:1)Binder for tables,capsule,2)Sugar coatings and films,3)Thickening agent,4)Solubility Improver for poorly soluble drugs,5)Bioavailability Enhancer for drugs active ingredients,6)Pore-forming for membrane products.
Cosmetic Grade PVP
Cosmetic Grade PVP products are suitable for fourmulations which used as film forming and viscosity modification,especially in hair styling products,mousse gels and lotions & solution,PVPs also used as dispersion agent in Hair-dying,pigment products formulations.
Technical Grade PVP
Technical grade PVP are being used in Textiles/Fibers,Adhesives,Coatings/paintings,Laundry/Household detergent,Inks,Ceramics and other hi-tech industries.
Specifications:
Product |
Povidone K15 |
Povidone K17 |
Povidone K25 |
Povidone K30 |
Povidone K60 |
Povidone K90 |
|
Appearance |
White or yellowish-white,hygroscopic powder or flakes |
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Solubility |
Freely soluble in water,in ethano(96%) and in methanol,very slightly soluble in acetone. |
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Appearance of Solution |
Clearly and not moren intensely coloured than reference solution B6,BY6 or R6 |
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Identifications |
Meet ID Tests |
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pH Value(5% in aqueous solution) |
3.0-5.0 |
3.0-5.0 |
3.0-5.0 |
3.0-5.0 |
4.0-7.0 |
4.0-7.0 |
|
Viscosity(Expressed as K Value) |
12.75-17.25 |
15.3-18.36 |
22.5-27.0 |
27.0-32.4 |
54.0-64.8 |
81.0-97.2 |
|
Adehydes(Expressed as Acetaldehyde) |
500 ppm max. |
500 ppm max. |
500 ppm max. |
500 ppm max. |
500 ppm max. |
500 ppm max. |
|
Peroxides(Expressed as H2O2) |
400ppm max. |
400 ppm max |
400 ppm max |
400 ppm max |
400 ppm max |