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*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:
|
Product |
PVP K30P |
PVP K80P |
PVP K90P |
PVP K30 30%L |
PVP K85 20% L |
PVP K90 20%L |
| Appearance |
White or off-white powder |
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:
|
Product |
Povidone K15 |
Povidone K17 |
Povidone K25 |
Povidone K30 |
Povidone K90 |
|
Appearance |
White or yellowish-white,hygroscopic powder or flakes |
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Solubility |
Freely soluble in water in ethanol(96%)and in methanol,very slightly soluble in acetone |
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Appearance of Solution |
Clearly and not more intensely coloured than reference solution B6,BY6 or R6 |
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Identification |
A. IR spectrum obtained is consistent with that abtained with Povidone CRS. |
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B.An orange-yellow precipitate is formed |
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C.A pink colour is produced |
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D.A red colour is produced |
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E.The substance dissolves |
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|
pH(5% in water) |
3.0~5.0 |
3.0~5.0 |
3.0~5.0 |
3.0~5.0 |
4.0~7.0 |
|
K Value |
12.75~17.25 |
15.30~18.36 |
22.50~27.00 |
27.00-32.40 |
81.00~97.20 |
|
Aldehydes |
500 ppm max. |
500 ppm max. |
500 ppm max. |
500 ppm max. |
500 ppm max. |
|
Peroxides |
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. |
|
Hydrazine |
1 ppm max. |
1 ppm max. |
1 ppm max. |
1 ppm max. |
1 ppm max. |
|
Impurity A |
10 ppm max. |
10 ppm max. |
10 ppm max. |
10 ppm max. |
10 ppm max. |
|
Impurity B |
3.0% max. |
3.0% max. |
3.0% max. |
3.0% max. |
3.0% max. |
|
Heavy Metals |
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. |
|
Sulphated Ash |
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% |
Applications:
Povidone posses excellent binding,film-forming,dispersing and thickening properties.it’s one of the most important excipient in the worldwide for pharmaceutical industry,whatever for human health care products or animal health care products.Which widely used in the pharmaceutical industry as:1)Binder for tablets,capsules.It’s suitable for wet and dry granulation and direct compression in tableting,improving the particle compressibility and can be added to powder blends in dry or dissolved by water,alcohol.2)Sugar coatings and films,3)Solubility Improver for poorly soluble drugs,4)Bioavailability Enhancer for drug’s active ingredients,5)Pore-forming for membrane products.
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Technical Grade Polyvinylpyrrolidone (PVP) is a hygroscopic polymer ,supplied in white or creamy white powder,raning from low to high viscosity & low to high molecular weight with solubility in aqueous and organic solvents,each characterized by K Value.PVP K is Solubility in water and many oter organic solvents.,Hygroscopicity,Film former ,Adhesive,Intial tack ,Complex forma-tion,Stabilization,Solubilization,Crosslinkability ,Biological compatibility and Toxicological safeness.In industrial applications including,in adhesives to improve strength and toughness;in paper manufacturer to increase strength and ascoating resin,and in synthetic fibers to improve dye receptivity.It is also widely employed in inks,imaging.lithography,detergents and soaps,the textile,ceramic,electrical,metallurgical industries and as a polymerization additive.
Key Technical Parameters:
|
Product |
PVP K15P |
PVP K17P |
PVP K25P |
PVP K30P |
PVP K90P |
PVP K30L |
PVP K90L |
|
Appearance |
White or off-white powder |
Colorless to yellowish liquid |
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|
K Value |
13~18 |
15~19 |
23~28 |
27~35 |
81~100 |
27~35 |
81~100 |
|
pH( 5% in water) |
3.0~7.0 |
3.0~7.0 |
3.0~7.0 |
3.0~7.0 |
5.0~9.0 |
3.0~7.0 |
5.0~9.0 |
|
NVP |
0.2% max. |
0.2% max. |
0.2% max |
0.2% max. |
0.2% max. |
0.2% max. |
0.2% max. |
|
Sulphated Ash |
0.1% max. |
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. |
95% min. |
95% min. |
29~31% |
19~21% |
|
Water |
5.0% max. |
5.0% max. |
5.0% max. |
5.0% max. |
5.0% max. |
69~71% |
79~81% |
Applications:
Technical grade PVP are being used Textiles/Fibers,Adhesives,Coatings/paintings,Laundry/Household detergent,Inks,Ceramics and other hi-tech industries.
*Dye transfer inhibition in detergents using PVP K15,K17 & K30 and/or its liquid product to complex fugitive.
*Textile dye stripping and strike rate control through compexation and dispersion with PVP K30 and/or its liquid product.
*Laundry detergents where PVP K30 inhibits soil redeposition.
*Emulsion polymerization where PVP K30 and or its liquid product latex stabilizer,functioning as a protective colloid,facilitates redispersion of a ‘broken’latex end-use application.
*Dispersions using PVPK30 & K90 and/or its liquid product for nonaqueous dye and pigment-based writing ink delivery systems.
*Hollow fiber membrane manufacture in which PVP K90 & K30 and/or its liquid product create voids any hydrophilic domains in polysulfone membranes.
*In oil filed cementing,where PVP K30& K90 and or its liquid productserve as fluid loss control agents.
*On lithographic plates using hydrophobic inks,where PVPK15 provides enhancement of the nonimage area.
*PVP K80,K85 & K90 and/or its liquid products in stearate-based adhesive sticks for arts and crafts applications.
*In fiber glass sizing,using PVP K30 & K90 and/or its liquid products film forming action to promote polyivnylacetate adhesion.
*As combustible ceramic binders,using PVP K30 & K90 and/or its liquid product to enhance green strength.
*PVP K15,K17,K30,K60 & K90 and/or its liquid products used in agriculture as binder and complexation agent for crop protection,Primary film former in seed treatment and coatings.
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