Polyethylene Glycol 4000 Lab Grade

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Polyethylene Glycol (PEG) is a petroleum-derived polymer that is also known as PEO (Polyethylene oxide) and POE (Polyoxyethylene). Polyethylene glycol is a water-soluble liquid or waxy solid that is used in cosmetics, medicines, emulsification, lubricants, and wetting agents. It is a colorless, oily liquid with a nice flavor and a mild odor. The number 4000 mentioned with the Polyethylene Glycol 4000, Lab Grade describes its average molecular weight. Lab grade chemicals possess reasonable purity but do not comply with any official standard for quality or purity. It is recommended to use Lab Alley’s Polyethylene Glycol 4000, Lab Grade in training institutes, research labs, and other commercial applications.


Polyethylene Glycol 4000, Lab Grade Features:

Average molecular weight 3600-4400
Range of Average Hydroxyl Number, mg KOH/g 25-32
Average Number of Repeating Oxyethylene Units 90
Density, g/cm3 at 60°C 1.093
Melting or Freezing Range, °C 53-59
Viscosity at 100°C, cSt 140.4
Common Uses
  • Reagent
  • Gas Chromatography
Commercial/Industrial Applications
  • Paint industry
  • Ceramics
Safety and Handling

Lab Alley, based in Austin, Texas is a nationwide supplier of Polyethylene Glycol 400 (PEG 400), Polyethylene Glycol 4000 (PEG 4000) and Polyethylene Glycol 8000 (PEG 8000).