NINGBO INNO PHARMCHEM CO.,LTD. provides a comprehensive look into the chemistry and safety of PVP K25 Povidone, a widely utilized polymer. Understanding its fundamental properties, such as its K-value, solubility, and stability, is crucial for its effective application across pharmaceutical, cosmetic, and industrial sectors. The polymer's inherent safety and regulatory acceptance further solidify its position as a preferred ingredient worldwide.

The chemical structure of PVP K25 Povidone is based on the monomer N-vinylpyrrolidone, polymerized into a water-soluble polyvinylpyrrolidone chain. The 'K' in PVP K25 refers to the Fikentscher K value, a measure of its molecular weight and intrinsic viscosity. For PVP K25, this typically falls within a specific range (e.g., 22.5-27.0), indicating a medium molecular weight that balances properties like binding strength, film formation, and solution viscosity. This specific K value is optimized for a broad range of applications, offering a good compromise between performance and processability. The molecular formula of PVP K25 Povidone is (C6H9NO)n.

PVP K25 Povidone is characterized by its excellent solubility in water and many organic solvents, including alcohols and amines, yet it remains insoluble in solvents like acetone and ether. This solubility profile is key to its versatility in various formulation types. The polymer is also known for its good hygroscopicity, meaning it readily absorbs moisture from the air, which requires proper storage in airtight containers. Chemically, PVP K25 Povidone is stable across a wide pH range and temperature conditions, and it is generally considered physiologically inert and non-toxic when used appropriately.

From a safety perspective, PVP K25 Povidone is generally recognized as safe (GRAS) by regulatory bodies like the U.S. Food and Drug Administration (FDA). It is included in the Inactive Ingredient Database for various routes of administration, including oral, topical, and injectable formulations. While rare cases of allergic reactions have been reported, they are often associated with specific application routes (e.g., subcutaneous) or contact with internal bodily fluids, rather than typical oral or topical cosmetic and pharmaceutical uses. The low residue on ignition and minimal heavy metal content in high-quality grades like those offered by NINGBO INNO PHARMCHEM CO.,LTD. further attest to its purity and safety.

NINGBO INNO PHARMCHEM CO.,LTD. ensures that its PVP K25 Povidone products meet stringent quality standards. Whether for pharmaceutical grade PVP K25, cosmetic grade PVP K25, or industrial applications, customers can rely on the product's consistent chemistry and safety profile. Understanding the detailed specifications, including K value and impurity profiles, is essential when making a purchase decision for PVP K25 Povidone.