For businesses in the pharmaceutical, cosmetic, and fine chemical industries, sourcing high-purity Polyethylene Glycol 300 (PEG 300) is a critical decision that impacts product quality and cost-effectiveness. As a trusted manufacturer and supplier based in China, we understand the intricate demands of these sectors and are dedicated to providing a consistent, high-quality supply of PEG 300 (CAS No. 25322-68-3). This guide aims to illuminate the essential aspects of PEG 300 that procurement managers, R&D scientists, and formulators should consider when looking to buy.

Understanding Polyethylene Glycol 300 (PEG 300)

Polyethylene Glycol 300 is a liquid polymer characterized by its clear, viscous, colorless, and hygroscopic nature. Its primary appeal lies in its versatility and high degree of purity, often exceeding 99%. Chemically stable and readily soluble in water and many organic solvents, PEG 300 serves as an excellent solvent, humectant, and intermediate. These properties make it an ideal choice for a wide array of applications, particularly where inertness and compatibility are paramount.

Key Specifications for Pharmaceutical and Cosmetic Use

When evaluating PEG 300, specific technical parameters are crucial. These include:

  • Purity: Typically specified as >99%, ensuring minimal contaminants for sensitive applications.
  • Average Molecular Weight: Around 285-315, contributing to its liquid state at room temperature.
  • Viscosity: Often specified within a range like 80-105 mPa·s at 20°C, influencing its handling and application.
  • Hydroxyl Value: Important for understanding its reactive potential in certain chemical syntheses.
  • Acidity/Alkalinity: Within a defined range (e.g., 4.5-7.5), ensuring pH compatibility.
  • Ethylene Glycol and Diethylene Glycol content: Kept to a minimum (≤0.25%) to meet pharmaceutical standards.

As a reputable supplier, we ensure that our PEG 300 meets these exacting standards, providing the reliability that professionals demand.

Applications Driving Demand for PEG 300

The demand for PEG 300 is primarily driven by its extensive use in:

  • Pharmaceuticals: As an excipient, it acts as a solvent and vehicle for active pharmaceutical ingredients (APIs) in oral dosage forms, ointments, lotions, and suppositories. It also plays a role in formulations requiring controlled release and enhanced solubility. Many pharmaceutical companies purchase large quantities for their drug development and manufacturing processes.
  • Cosmetics and Personal Care: Its humectant and solvent properties make it valuable in skincare products, hair care, and toiletries, helping to moisturize and stabilize formulations.
  • Industrial Applications: PEG 300 also finds use as a lubricant, plasticizer, and chemical intermediate in various industrial processes, including textile manufacturing and as a component in inks and coatings.

Why Choose Us as Your PEG 300 Manufacturer and Supplier?

Navigating the global market for chemical intermediates requires a partner you can trust. Our commitment as a China-based manufacturer means we offer not only competitive pricing for bulk orders but also consistent quality control and reliable supply chain management. We understand the importance of seamless integration into your production processes. Whether you are looking to buy PEG 300 for the first time or seeking a more dependable long-term supplier, our team is equipped to meet your needs. We encourage you to reach out for a sample and a competitive quote to experience the difference quality and dedicated service can make to your business.