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CasNo： 9003-39-8
Molecular Formula： (C6H9NO)n
Appearance： White powder
Packing： 25kg/drum
Product Name:Polyvinylpyrrolidone
Chemical Description:Homopolymer of 1-Vinly-2-Pyrrolidone,Polyvinylpyrrolidone
INCI/CTFA:PVP
CAS NO.:9003-39-8
Formula structure:
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.
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 | 400 ppm max | |
|
Formic Acid |
0.5% max. |
0.5% max. | 0.5% max. | 0.5% max. | 0.5% max. | 0.5% max. | |
|
Hydrazine |
1ppm max. |
1ppm max. | 1ppm max. | 1ppm max. | 1ppm max. | 1ppm max. | |
|
N-Vinylpyrrolidone(Impurity A) |
USP27 |
1000 ppm max. |
1000 ppm max. | 1000 ppm max. | 1000 ppm max. | 1000 ppm max. | 1000 ppm max. |
|
Current USP/EP/BP |
10 ppm max. |
10 ppm max. | 10 ppm max. | 10 ppm max. | 10 ppm max. | 10 ppm max. | |
|
2-Pyrrolidone(Impurity B) |
3.0% max. |
3.0% max. | 3.0% max. | 3.0% max. | 3.0% max. | 3.0% max. | |
|
Heavy Metals(as Pb) |
10 ppm max. |
10 ppm max. | 10 ppm max. | 10 ppm max. | 10 ppm max. | 10 ppm max. | |
|
Water |
5.0% max. |
5.0% max. |
5.0% max. |
5.0% max. |
5.0% max. |
5.0% max. |
|
|
Sulphated Ash |
0.1% max. |
0.1% max. |
0.1% max. |
0.1% max. |
0.1% max. |
0.1% max. |
|
|
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% |
|
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.
example:PVP K30 used as adhesive in medicine products,PVP-K17 for Injection purpose
