At NINGBO INNO PHARMCHEM CO.,LTD., we believe that a thorough understanding of chemical properties is fundamental to harnessing the full potential of our products. Today, we delve into the specifics of PVP K90, a versatile polymer whose utility spans across numerous industries, particularly in cosmetics and pharmaceuticals. By examining its key chemical attributes, we can better appreciate why PVP K90 is a preferred choice for formulators seeking reliable performance and consistent results.

The defining characteristic of PVP K90 is its specific K-value, which ranges from 81 to 97.2. This K-value is an indicator of its molecular weight and, consequently, its viscosity and film-forming capabilities. A higher K-value, like that of K90, signifies a higher molecular weight, leading to increased viscosity and stronger film formation. This is crucial for applications requiring robust thickening and cohesive properties, such as in hair styling products or tablet binders. Understanding these PVP K90 chemical properties allows formulators to tailor their products precisely.

Solubility is another critical aspect of PVP K90. It is highly soluble in water and many organic solvents, including ethanol, isopropanol, and various polar organic liquids. This broad solubility profile makes it incredibly adaptable, allowing for easy incorporation into a wide range of formulations, whether aqueous or solvent-based. The excellent solubility of PVP K90 ensures that it integrates smoothly without creating precipitates or inconsistencies, a key advantage for efficient manufacturing processes.

Purity and stability are paramount, especially when considering the PVP K90 chemical properties for sensitive applications like pharmaceuticals and cosmetics. Our PVP K90 typically exhibits purity levels exceeding 95%, with very low levels of residual vinylpyrrolidinone monomer (<=0.1%) and low sulphated ash content (<=0.1%). It also has a low water content (<=5%) and is stable under normal storage conditions, with a shelf life of up to 3 years. These specifications reinforce the quality assurance offered by NINGBO INNO PHARMCHEM CO.,LTD.

The pH of PVP K90 solutions is generally neutral to slightly acidic (3.0-7.0), which is compatible with many cosmetic and pharmaceutical formulations. Furthermore, it demonstrates excellent resistance to degradation from heat and light, contributing to the longevity and stability of the final products. This inherent stability is a significant benefit for formulators aiming for long-lasting and reliable products.

In conclusion, the unique combination of a high K-value, excellent solubility, low impurity profile, and robust stability makes PVP K90 an exceptionally versatile and valuable ingredient. NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing PVP K90 that meets these exacting chemical properties, empowering innovation and excellence in your product development.