PEG 4000 – High Molecular Weight Polyethylene Glycol

🧪 CAS Number: 25322-68-3

🌟 Product Description

PEG 4000 (Polyethylene Glycol 4000) is a high molecular weight polyether that appears as a white, waxy solid. It is water-soluble, odorless, non-toxic, and widely used in pharmaceuticals, food, cosmetics, and industrial applications. Commonly applied as a binder and coating agent in tablets, carrier in ointments and creams, stabilizer in food additives, and mold release agent in industrial processes.

🏭 Applications

💊 Binder and coating in pharmaceuticals

🧴 Emollient and carrier in cosmetics

🍫 Food additive and stabilizer

⚙️ Processing aid in plastics and rubber

🧪 Carrier and solvent in chemical industry

📊 Physical & Chemical Properties

Appearance: White, waxy solid

Odor: Odorless

Molecular Formula: H(OCH2CH2)nOH

Molecular Weight: ~3800–4200 g/mol

Melting Point: ~55–63 °C

Density (20 °C): ~1.15 g/cm³

Solubility: Completely soluble in water

⚠️ Storage & Safety

PEG 4000 is generally recognized as safe. It should be stored in cool, dry conditions away from moisture and direct sunlight. Packaging should ensure hygienic storage and protection from contamination.

🔑 Keywords

PEG 4000, polyethylene glycol, CAS 25322-68-3, pharmaceutical excipient, cosmetic additive, food stabilizer

📛 Other Names

Polyethylene Oxide, Polyethylene Oxide Glycol