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Product Name:Polyvinylpyrrolidone
INCI Name:PVP,Polyvinylpyrrolidone
Pharmacopeia Name:Povidone
Formula: (C6H9NO)n
CAS No.:9003-39-8
*Cosmetic Grade Polyvinylpyrrolidone(PVP) 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,highly hygroscopicity,excellent film-forming capacity,adhesiveness and chemical stability,none toxicity.Cosmetic Grade PVP are widely used in hair care,skin care and oral care products,especially for hair styling products.In view of it’s wide molecular weight range,from the low molecular weight to high molecular weight PVP applicable for soft to hard hair care products’ formulations.
Key Technical Parameters:
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Product
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PVP K30P
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PVP K80P
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PVP K90P
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PVP K30 30%L
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PVP K85 20% L
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PVP K90 20%L
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| Appearance |
White or off-white powder
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Clear and colorless to slightly yellowish liquid
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| K Value(5% in water) |
27~35 |
75~87 |
81~97 |
27~35 |
78~90 |
81~97 |
| pH( 5% in water) |
3.0~7.0 |
5.0~9.0 |
5.0~9.0 |
3.0~7.0 |
5.0~9.0 |
5.0~9.0 |
| N-Vinylpyrrolidone |
0.03% max. |
0.03% max. |
0.03% max. |
0.03% max. |
0.03% max. |
0.03% max. |
| Sulphated Ash |
0.1% max. |
0.1% max. |
0.1% max. |
0.1% max. |
0.1% max. |
0.1% max. |
| Solid Content |
95% min. |
95% min. |
95% min. |
29~31% |
19~21% |
19~21% |
| Water |
5.0% max |
5.0% max. |
5.0% max. |
69~71% |
79~81% |
79~81% |
| Heavy Metals(As Pb) |
10 ppm max. |
10 ppm max. |
10 ppm max. |
10 ppm max. |
10 ppm max. |
10 ppm max. |
Applications:
Cosmetic Grade PVP products are suitable for fourmulations which used as film forming and viscosity modification/Thickener,especially in hair styling products,mousse gels and lotions & solution,PVPs also used as dispersion agent in Hair-dying,pigment products’ formulations.Thickening agent for oral and optical preparations.
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Pharmaceutical Grade Polyvinylpyrrolidone(PVP)-Povidone is homopolymer of 1-vinyl-2-pyrrolidone (Polyvinylpyrrolidone),freely soluble in water,in ethanol (96%),in methanol,and other organic solvents,veryslightly soluble in acetone.It’s 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,with excellent hygroscopisty,film-forming,adhesive,chemical stability and toxicological safeness characters.
Key Technical Parameters:
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Product
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Povidone K15
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Povidone K17
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Povidone K25
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Povidone K30
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Povidone K90
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Appearance
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White or yellowish-white,hygroscopic powder or flakes
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Solubility
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Freely soluble in water in ethanol(96%)and in methanol,very slightly soluble in acetone
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Appearance of Solution
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Clearly and not more intensely coloured than reference solution B6,BY6 or R6
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Identification
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A. IR spectrum obtained is consistent with that abtained with Povidone CRS.
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