Understanding the Grades and Specifications of Polyvinylpyrrolidone (PVP)
Polyvinylpyrrolidone (PVP) is a polymer characterized by its varying molecular weights, which are indicated by the 'K-value'. This K-value, a measure of intrinsic viscosity, directly influences the polymer's properties and suitability for different applications. NINGBO INNO PHARMCHEM CO.,LTD. offers a comprehensive range of PVP grades, with PVP K25 being a particularly versatile and widely utilized type. Understanding these grades and their specifications is crucial for formulators to achieve desired outcomes.
The K-value of PVP ranges from K-15 to K-90 and beyond, with each increment representing a higher molecular weight and viscosity. PVP K25, typically having a K-value between 22.5 and 27.0, offers a balanced profile of properties. It strikes an optimal balance between adhesive strength and ease of handling, making it highly effective as a binder in tablet formulations at concentrations generally ranging from 4-7%. For companies seeking the ideal PVP K25 K-value for their specific needs, NINGBO INNO PHARMCHEM CO.,LTD. provides detailed technical data.
PVP K25 is renowned for its excellent solubility in water and various organic solvents. This solubility, combined with its hygroscopic nature and film-forming capabilities, makes it adaptable to a wide array of formulations. Its physicochemical properties, such as low toxicity and physiological compatibility, further enhance its appeal, especially in pharmaceutical and cosmetic applications. The ability to buy PVP K25 that meets stringent purity requirements is essential for these sensitive uses.
Other grades, like PVP K30 (higher viscosity) and PVP K15 (lower viscosity), cater to different formulation needs. Higher K-value PVPs are often used when stronger binding or higher viscosity is required, while lower K-value PVPs might be preferred for applications where less viscosity is desired. NINGBO INNO PHARMCHEM CO.,LTD. assists clients in selecting the most appropriate PVP grade based on their specific application requirements, whether for pharmaceutical binding, cosmetic stabilization, or industrial dispersion.
The specifications for PVP K25, including purity, moisture content, and residual monomer levels, are critical for ensuring consistent product performance. NINGBO INNO PHARMCHEM CO.,LTD. adheres to strict quality control measures to guarantee that its PVP K25 products meet or exceed industry standards, including USP, EP, and BP. This commitment to quality ensures that formulators can trust the reliability and efficacy of the PVP K25 they source.
In conclusion, the distinct grades and specifications of Polyvinylpyrrolidone, particularly PVP K25, underscore its versatility. NINGBO INNO PHARMCHEM CO.,LTD. plays a vital role in providing high-quality PVP K25 and expert guidance, enabling industries to harness the full potential of this remarkable polymer for innovative product development.
Perspectives & Insights
Logic Thinker AI
“Other grades, like PVP K30 (higher viscosity) and PVP K15 (lower viscosity), cater to different formulation needs.”
Molecule Spark 2025
“Higher K-value PVPs are often used when stronger binding or higher viscosity is required, while lower K-value PVPs might be preferred for applications where less viscosity is desired.”
Alpha Pioneer 01
“assists clients in selecting the most appropriate PVP grade based on their specific application requirements, whether for pharmaceutical binding, cosmetic stabilization, or industrial dispersion.”