NINGBO INNO PHARMCHEM CO.,LTD. is committed to empowering our clients with the knowledge to make informed purchasing decisions. Understanding the detailed specifications of PVP VA64 powder is crucial for ensuring optimal performance in your pharmaceutical and cosmetic applications. This guide breaks down the key parameters that define the quality and suitability of this essential Vinylpyrrolidone/Vinyl Acetate Copolymer.

The primary identifier for this copolymer is its CAS number: PVP VA64 CAS 25086-89-9. This unique identifier guarantees that you are sourcing the correct chemical entity. Beyond the CAS number, several physical and chemical properties are critical. Firstly, the appearance is typically described as white or creamy white, free-flowing powder, indicating a high level of purity and consistent particle size. This characteristic is essential for predictable processing and formulation.

Key to its functionality is the K Value, which measures the molecular weight and viscosity-building capacity of the polymer. For PVP VA64, the K value typically ranges from 26-34, indicating a moderate molecular weight suitable for film-forming and binding applications. The pH value, usually between 4.0-7.0 for a 5% aqueous solution, ensures compatibility within a wide range of formulations without causing pH-related issues. The water content, specified as a maximum percentage (e.g., 5.0% max.), is also important for stability and handling.

For pharmaceutical applications, adherence to compendial standards such as USP, EP, or BP is paramount. When you buy PVP VA64 powder for pharmaceutical use, look for certifications confirming compliance with these pharmacopeias. These standards ensure rigorous testing for purity, residual monomers, heavy metals, and other contaminants. The presence of specifications like NVP (N-Vinylpyrrolidone) and Residue VA (Vinyl Acetate) percentages, along with limits for heavy metals, is critical for drug safety. The requirement for PVP VA64 powder pharmaceutical grade underscores the need for these stringent controls.

In cosmetic applications, while purity is still important, the focus might shift slightly towards performance attributes like film strength and hair fixation. The ratio of Vinylpyrrolidone to Vinyl Acetate (e.g., 60/40) influences hygroscopicity, with higher Vinyl Acetate content leading to lower moisture absorption – a desirable trait for many hair styling products. Understanding these nuances of copovidone for cosmetics helps formulators fine-tune their product performance. Whether for pharmaceutical or cosmetic use, ensuring the source provides clear documentation on these specifications is vital.

NINGBO INNO PHARMCHEM CO.,LTD. provides comprehensive technical data sheets for our PVP VA64 powder, detailing all critical specifications. We encourage our customers to review these specifications carefully to ensure they select the ideal grade for their unique product requirements. By focusing on these key parameters, you can confidently integrate our high-quality PVP VA64 powder into your pharmaceutical and cosmetic formulations, achieving superior results every time.