Polyethylene Glycol (PEG) is a versatile polymer with a wide array of applications across pharmaceuticals, cosmetics, and industrial sectors. A key factor determining PEG's suitability for a specific use is its molecular weight. As a leading chemical manufacturer and supplier, we understand the importance of clarity regarding PEG grades and are here to guide you on selecting the right molecular weight, particularly focusing on PEG 4000.

The nomenclature of PEG often includes a number, such as PEG 4000, which indicates its average molecular weight in Daltons. Lower molecular weight PEGs (e.g., PEG 200, 400) are typically liquids at room temperature and are often used as solvents, humectants, or in applications requiring high water solubility and fluidity. These are excellent for certain topical formulations and as bases for inks and lubricants.

Higher molecular weight PEGs, such as PEG 4000, are solids at room temperature and possess different functional properties. PEG 4000 is widely recognized for its utility in solid dosage forms, acting as a binder, lubricant, and even a stiffening agent in tablets and capsules. Its solid nature makes it easier to handle in powder-based formulations. For pharmaceutical companies looking to buy PEG 4000, its role in enhancing tablet integrity and dissolution is a significant advantage.

When sourcing, it’s crucial to buy PEG 4000 from a manufacturer that guarantees consistent molecular weight distribution and purity. As a reputable chemical supplier in China, we ensure our PEG 4000 meets rigorous quality standards, providing formulators with the reliability needed for critical applications. The price of PEG 4000 can vary based on grade and quantity, making it important to obtain quotes for bulk purchases.

The choice between different PEG molecular weights depends entirely on the end-use application. For instance, while PEG 400 might be ideal for liquid preparations or as a solvent, PEG 4000 is often the preferred choice for creating solid pharmaceutical forms or for applications requiring a more viscous or solid consistency. Understanding these distinctions allows formulators and manufacturers to optimize their product development and procurement strategies.

We are dedicated to providing comprehensive support to our clients. Whether you need to buy PEG 4000 for pharmaceuticals, cosmetics, or industrial uses, our team can assist you in identifying the most suitable product. Explore the advantages of partnering with a trusted PEG manufacturer and supplier for your critical ingredient needs.