CTFA Nomenclature: POLYVINYLPYRROLIDONE(Povidone,PVP)
CAS NO: 9003-39-8
Product name:Polyvinylpyrrolidone PVP K30
Chemical Description:Homopolymer of 1-Vinly-2,-Pyrrolidone,Polyvinylpyrrolidone
USP and EP Name:Povidone(Povidonum)
Chemical Name:Homopolymer of Vinylpyrrolidone
Physical Properties: PVP exists as powder or aqueous solution. It can dissolve in water and a variety of organic solvents. It has good hygroscopicity, film-forming capability, complexing ability and physiological compatibility.
Specification:Technical grade | K15 | K17 | K25 | K30 | K90 |
K value | 13-17 | 15-19 | 23-27 | 27-33 | 88-98 |
N-Vinylpyrrolidone (Impurity A) | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
Moisture % max | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
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 |
Sulphate Ash % max | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
Nitrogen content % | 11.5-12.80 | 11.5-12.80 | 11.5-12.80 | 11.5-12.80 | 11.5-12.80 |
Product Properties:Technical grade PVP(PVP K Series) products are existing as powder and water solution form,and being supplied in a wide molecular weight range,easily dissolve in water,alcohol and other organic solvents.They are highly hygroscopicity,excellent film-forming capacity,adhesiveness and chemical stability,none toxicity.
Applications: Technical grade PVP are being used in Textiles/Fibers,Adhesives,Coatings/paintings,Laundry/Household detergent,Inks,Ceramics and other hi-tech industries.
Pharmaceutical grade(USP/EP/BP/JP) | K15 | K17 | K25 | K30 | K90 |
K value | 13-17 | 15-19 | 23-27 | 29-32 | 88-98 |
N-Vinylpyrrolidone (Impurity A) | (CP/USP) %max | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
(USP/EP/BP) ppm max | 10 | 10 | 10 | 10 | 10 |
Moisture % max | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
Solid content % min | 95 | 95 | 95 | 95 | 95 |
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 |
Sulphate Ash % max | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
Nitrogen content % | 11.5-12.80 | 11.5-12.80 | 11.5-12.80 | 11.5-12.80 | 11.5-12.80 |
2,-Pyrrolidone (Impurity B) % max | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
Aldehyde(as acetaldehyde) ppm max | 500 | 500 | 500 | 500 | 500 |
Heavy metal (as Pb) ppm max | 10 | 10 | 10 | 10 | 10 |
Hydrazine ppm max | 1 | 1 | 1 | 1 | 1 |
Peroxide(As H2O2) ppm max | 400 | 400 | 400 | 400 | 400 |
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.It's easily soluble in water and many other organic solvents,with excellent hygroscopisty,film-forming,adhesive,chemical stability and toxicological safeness characters.
Applications: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.It's 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 drug's active ingredients,6)Pore-forming for membrane products.
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