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At NINGBO INNO PHARMCHEM CO.,LTD., we specialize in Polyvinylpyrrolidone (PVP) and understand the nuances that differentiate its various grades. A critical parameter for classifying PVP is its 'K value,' which directly correlates to its molecular weight and, consequently, its physical properties and applications. Understanding the PVP K value is essential for selecting the right grade of PVP for a specific purpose, whether it's for pharmaceutical formulations, cosmetic products, or industrial applications.
The K value, derived from the Fikentscher equation, is a measure of the viscosity of a PVP solution and, by extension, its average molecular weight. Generally, a higher K value indicates a higher molecular weight and greater viscosity. For instance, PVP K15 has a lower molecular weight and viscosity compared to PVP K90. This difference in molecular weight dictates how each grade performs as a binder, dispersant, solubilizer, or film-former.
PVP K90, with its high K value, possesses a substantial molecular weight, making it an exceptionally effective binder for pharmaceutical tablets and granules. Its strong adhesive properties ensure tablet cohesion and integrity. It is also a preferred choice for applications requiring high viscosity and film strength. If you are looking to buy PVP K90 powder, it's important to note that its high molecular weight contributes to its superior binding capabilities, making it ideal for demanding applications.
Lower K-value PVPs, such as PVP K17 or K30, are often favored as solubilizers, dispersants, and for applications where lower viscosity is preferred. They are excellent for improving the solubility of poorly soluble drugs and for use in liquid formulations. The choice between different K values often depends on the specific performance requirements of the application. As a dedicated PVP K90 supplier China, we offer a range of PVP products, and our technical team can assist you in identifying the most suitable grade based on your needs.
We pride ourselves on providing clear information about our products. By understanding the significance of the PVP K value, formulators can confidently select the right PVP grade, such as our high-quality PVP K90, to achieve optimal results. Whether you are developing pharmaceuticals, cosmetics, or industrial products, knowing the K value is key to unlocking the full potential of Polyvinylpyrrolidone.
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1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.
