Grade Standard: Pharmaceutical Grade
CAS No.: 9003-39-8
Origin: Zhejiang, China (Mainland)
Other Names: pvp
Trade Name: Sunvidone® K
Water Solubility: Soluble
Type: Auxiliary Agents and Other Pharmaceutical Chemicals
Appearance: White or Milky White Povidone K Powder
Characteristic
Excellent water solubility: PVP K90 can dissolve quickly in water to form a transparent viscous solution, which makes it very popular in pharmaceuticals and cosmetics.
Strong adhesion: PVP K90 has excellent adhesion properties and can form strong bonds with a variety of materials such as metals, glass, plastics, and paper.
Biocompatibility: PVP K90 is suitable for products that come into direct contact with the human body due to its non-toxicity and biocompatibility. It is widely used in the pharmaceutical industry, such as drug preparations, medical glues, etc.
Chemical stability: The polymer has good stability to many chemicals, can maintain its performance under a variety of environmental conditions, and is not easily degraded.
Specification
| SUNVIDONE | K15 | K17 | K25 | K30 | K90 |
| Colour (5% in water) min. | BY6, B6 | BY6, B6 | BY6, B6 | BY6, B6 | BY6, B6 |
| K value | 12.8-17.3 | 15.3-18.4 | 22.5-27.0 | 27.0-32.4 | 81.0-97.2 |
| Impurity A, ppm max | 10 | 10 | 10 | 10 | 10 |
| Impurity B, %max | 3 | 3 | 3 | 3 | 3 |
| Formic Acid. %max | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Peroxides, ppm max | 400 | 400 | 400 | 400 | 400 |
| Aldehyde, ppm max | 500 | 500 | 500 | 500 | 500 |
| Hydrazine, ppm max | 1 | 1 | 1 | 1 | 1 |
Application
Pharmaceutical industry:
Drug preparations: PVP K90 is widely used in the manufacture of tablets and capsules as an adhesive to help improve the release characteristics and stability of drugs.
Cosmetic industry:
In skin care products and cosmetics, PVP K90 is used as a thickener and film former to improve the texture and stability of the product. It can enhance the adhesion of the product and prevent it from falling off.
Food industry:
PVP K90 is used as an adhesive in food packaging to help improve the sealing and moisture resistance of the packaging and extend the shelf life of the food.
Industrial application:
PVP K90 can be used as an adhesive and thickener in coatings, glues and industrial products to improve the adhesion and performance of the product.
FAQ
1.How to use PVP K90 powder?
PVP K90 powder needs to be mixed with water or other solvents to form a solution of the desired concentration. When using, adjust the concentration and viscosity of the solution according to the specific application to achieve the best effect.
2.Is PVP K90 safe?
PVP K90 is considered non-toxic and biocompatible, so it is widely used in medical and food contact applications with high safety.
3.What are the storage conditions of PVP K90?
PVP K90 should be stored in a cool, dry place away from direct sunlight and high temperatures to maintain its performance and stability.
4.What is the drying time of PVP K90?
The drying time will be affected by environmental conditions. Generally, the drying time ranges from a few minutes to a few hours, depending on the coating thickness and humidity.
5.Can PVP K90 be mixed with other materials?
PVP K90 is compatible with a variety of materials, but it is recommended to test it on a small scale before mixing to ensure that it will not affect the bonding effect and performance.
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