Polyvinylpyrrolidone (Povidone, PVP) series products are widely used water soluble polymers with excellent performances. As new types of pharmaceutical and chemical auxiliary materials, they have prospects in the fields of pharmaceuticals, cosmetics, textiles and dyestuffs, printing inks, paints and coatings, polymer filtration membrane, paper and building materials industry.
Povidone-Iodine is the complex of povidone with iodine, which is one of the most important utility of polyvinylpyrrolidone in pharmaceuticals. The external using validity of povidone-iodine in human medicine and in animal medicine has been confirmed by clinic, and povidone-iodine has become the first-selected iodine-containing disinfector for medical treatment, sanitation and epidemic prevention in developed countries. At present, it has been used successfully in powder, tablet, solution, lotion, gel ointment, frost, mousse and sprayer.
SHANGHAI DEXIANG MEDICINE TECH. Co., LTD is a high-tech company which specializes in the research & development, manufacturing and sales of polyvinylpyrrolidone (Povidone, PVP) series products. Located in ZHENGZHOU HENAN, our manufacturing factory possesses the most advanced manufacturing process in China, which can supply an annual production capacity of 1000 tons for high quality polyvinylpyrrolidone (PVP) series products. Our main products: PVPK17、PVPK25、PVP K30, PVP K90, PVPVA/64、PVPP、PVP-IODINE、NVP, etc. We will furnish products with high accessional value and high quality as well as professional technical support and services.
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PVP-K Homopolymer series
Chemical Structure: Homopolymer of vinylpyrrolidone
CTFA Nomenclature:POLYVINYLPYRROLIDONE(Povidone,PVP)
CAS NO:9003-39-8
Molecular Formula: (C6H9NO)n
Physical Properties: PVP exists as white or milk white powder or or colorless or slight yellow transparent liquid. 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 | ||||||
Catalog of product | K value | Vinyl pyrrolidone% | Moisture% | Ash% | Solid% | PH (5% in water) |
K30 (powder) | 27-33 | <0.2 | <5.0 | <0.1 | >95 | 3-7 |
K90 (aqueous solution) | 90-103 | <0.2 | <0.1 | 20±1 | 7-10.5 |
Pharmaceutical grade(CP2005/USP27)
Items |
K17 |
K25 |
K30 |
K90 |
K value |
15-19 |
23-27 |
29-32 |
88-96 |
Monomer % max |
0.1 |
0.1 |
0.1 |
0.1 |
Moisture % max |
5.0 |
5.0 |
5.0 |
5.0 |
Solid content % max |
95 |
95 |
95 |
95 |
pH(5% solution) |
3-7 |
3-7 |
3-7 |
5-9 |
Sulfate ash % max |
0.1 |
0.1 |
0.1 |
0.1 |
Nitrogen % |
11.5-12.8 |
11.5-12.8 |
11.5-12.8 |
11.5-12.8 |
Aldehyde ppm max |
500 |
500 |
500 |
500 |
Heavy metal ppm max |
10 |
10 |
10 |
10 |
Hydrazine ppm max |
1 |
1 |
1 |
1 |
Peroxide ppm max |
400 |
400 |
400 |
400 |
Application:
Cosmetics: | PVP-K series can be used as film-forming agent, viscosity-enhancing agent, lubricator and adhesive in hair sprays, mousse, hair-fixing gels and solution. They are also useful auxiliary materials in skin-care product, hair-dying reagent, shampoo, lipstick, deodorant, sunscreen and dentifrice. |
Pharmaceutical: | PVP-K30 (Pharmaceutical grade) is a kind of new excellent pharmaceutical excipient. It is mainly used as binder for tablet and granule, dissolving assistant for injection, flow assistant for capsule, dispersant for liquid medicine and pigment,stabilizer for enzyme and heat-sensitive drug, coprecipitant for poorly soluble drugs, lubricator and antitoxic assistant for eye drug. PVP has been used as excipient in more than one hundred drugs. |
Other Utility: | Suspensant, dispersant and emulsifier Disinfector Paint and coating Printing ink Textile and dyestuff Building material Paper making TV kinescope Polymer ultra-filtration membrane, micro-filtration membrane Glass fiber |
PVP-I (PVP-IODINE)
Chemical Structure: Complex of PVP with Iodine
CTFA Nomenclature:PVP-IODINE
CAS NO:25655-41-8
Molecular Formula:[C6H9NO]n . xI
Physical Properties: Physical Properties: PVP-Iodine exists as a kind of yellow-brown or red-brown powder. It can extinguish bacterial, virus, fungus effectively. It is a stable complex with no irritation, which can dissolve in cold water and some organic solvents.
Specification:
Lost on dry% | Residue on burning% | Arseni(μg/g) | Heavy metal ppm | Nitrogen % | Iodine ion% | Available iodine% |
≤8.0 | ≤0.1 | ≤1.5 | ≤20 | 9.5-11.5 | ≤6.6 | 9.0-12.0 |
Application: PVP-Iodine is used as local antiseptic for skin and appliance in surgical scrubs and injection, and as a good remedy for infection. It also works as microbicide for kitchen utensils in family. In addition, it acts as good microbicide in food industry, breed aquatics industry and animal disease prevention. Povidone-iodine has become the first-selected iodine-containing disinfector for medical treatment, sanitation and epidemic prevention in developed countries. It was embraced by «China Pharmacopoeia»2000 edition and USP 27th.
PVPP (Polyvinylpolypyrrolidone)
chemical structure: Polyvinylpolypyrrolidone
CTFA Name:Insoluble PVPP
CAS NO:25249-54-1
Molecular Formula:(C6H9NO)n
Physical Properties: exists as white or slight yellow, free flowing hygroscopic power with odourless or faint characteristic smell. It’s insoluble in water, alkali, acid and common organic reagents Stereoscan photographs show that it is voluminous particulars and has large total surface and lots of porosity which is between 2-10nm. It can swell in water easily and can complex with polyphenol, carboxylic acids and other low molecular weight compounds. PVPF can only be used once and PVPR can be reused after regenerated.
specification:
items | moisture% | PH(1% in water) | N% | Sulfate ash% | SolubleComponents% | monomer% | Heavy metals ppm | Expansion Cubic(l/Kg) | Penetrability(l/h*1600cm2) |
food grade | <6.0 | 5-11 | 11.0-12.8 | <0.4 | <1.5 | <0.1 | <10 | <6 | >4 |
Pharm grade | <5.0 | 5-8 | 12.0-12.8 | <0.2 | <1.5 | <0.1 | <10 | <6 | - |
Application: Used as stabilizer for beer, liquor, wine, and many juice and beverage to prolong their storage life; used as disintegrant for table bill, particular-like granule and capsule drug in Pharmaceutical industry.
PVP-A (PVP A Copolymer Series)
chemical structure: Copolymer of vinylpyrrolidone and vinylacetate
CTFA Name:PVP/VA copolymer
CAS NO:25086-89-9
Physical Properties: exists as white or milk white powder, and colorless or slight yellow transparent liquid. The clarity of the aqueous solution depends on the proportion of vinylpyrrolidone and vinylacetate.
specification:
Appearance (25℃) | K value | moisture% | Aldehyde(as acetaldehyde)% | PH(1% in water) | monomer(VP+VA)% | N% | Sulfate ash% | Heavy metals ppm | Hydrazine(ppm) | preoxides(ppm) |
White Powder | 25.4-34.2 | <5.0 | <0.2 | 5.0-7.0 | <0.4 | 7.0-8.0 | <0.1 | <10 | <1 | <400 |
Application: Cosmetic Industry: PVP A series products act film-former and hair-fixing agent in cosmetics. Their hygroscopicity decrease with the increasing of the proportion of vinylacetate in the copolymer. Other industries: It performs very well in remoistenable adhesive, adhesives for paper and coating. It can be used as viscosity-enhancing agent for printing ink a protecting aloud for lent-protecting chemicals.
NVP
Chemical Structure: N- Vinyl Pyrrolidone
CTFA Nomenclature: N-VINYLPYRROLIDONE (NVP)
CAS NO:88-12-0
Molecular Formula:C6H9NO
European Pre-registration No:05-2117279876-21-0000
Property : NVP exists as a kind of colorless or flaxen clear liquid with slight odor at the room temperature, It can dissolve in water and a variety of organic solvents. It is of active chemical property, and is very easily to polymerize and hydrolyze.
Specification:
TEST ITEMS |
SPECIFICATIONS |
Appearance (25 ℃ ) |
Colorless clear liquid |
Color (APHA) Hazen |
≤ 10 |
Content (GC) % |
≥ 99.70 |
Moisture (GC) % |
≤ 0.20 |
α -Pyrrolidone (GC) % |
≤ 0.05 |
Other (GC) % |
≤ 0.05 |
PH value |
6-9 |
Application: NVP can co-polymerize with a series of monomers. NVP can be used to produce widely used polymer-PVP, which can enhance the film-forming intension and the adhesion force in dyestuffs. NVP is one of the most important raw materials for cosmetics, pharmaceuticals, auxiliary for beer precipitation. NVP can also be used as icing of the tablet, dilute agent of the ultraviolet radiation absorbent, coat of the foam haircut agent, medicines with the effect of disinfection and sterilization.
PVP K-30 (pharmaceuticals) USP27 | 25 kg / drum |
PVP K-30 (Tech. & Cosmetic Grade ) | 25 kg / drum |
PVP K-90 (pharmaceuticals) USP27 | 25 kg / drum |
PVP K-90 (Tech Grade) | 50 kg / drum |
PVP-Iodine USP27 | 25 kg / drum |
PVPP(CrossPovidone) USP27 | 20kg/drum |
NVP(N-Vinylpyrrolidone) | 200kg / drum |