Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Dow PEG3350 Polyethylene Glycol

Dow PEG3350 Polyethylene Glycol is a high-purity, water-soluble polymer from Dow’s PEG series, featuring average molecular weight ~3350 Da. Widely used as a pharmaceutical excipient, surfactant, and formulation aid, it offers excellent solubility, low toxicity, and thermal stability. Ideal for drug delivery, cosmetics, and industrial applications requiring consistent performance and regulatory compliance.
  • dow peg3350 polyethylene glycol_b2c58ac3
  • dow peg3350 polyethylene glycol_b2c58ac3

Features Of Dow PEG3350 Polyethylene Glycol

  1. Highly water-soluble, non-ionic polymer with excellent solubilizing and dispersing capabilities.

  2. Low volatility and low toxicity, supporting safe handling in industrial and pharmaceutical environments.

  3. Consistent molecular weight distribution (Mn ≈ 3,350 g/mol) ensuring reproducible performance across batches.

  4. Thermally stable up to 150°C under inert conditions, suitable for high-temperature processing applications.

  5. Non-irritating and compliant with major pharmacopeial standards including USP/EP for select grades.

Typical Applications Of Dow PEG3350 Polyethylene Glycol

  1. Pharmaceutical tablet binder and controlled-release matrix excipient.

  2. Surfactant and viscosity modifier in personal care formulations such as creams and ointments.

  3. Grinding aid and dispersant in pigment and ink manufacturing.

  4. Plasticizer and lubricant in polymer processing of thermoplastics and elastomers.

  5. Stabilizer and cryoprotectant in biopharmaceutical formulation and protein storage.

Specifications Of Dow PEG3350 Polyethylene Glycol

Chemical TypePolyethylene glycol (PEG), non-ionic polymer
Product FormWhite to off-white solid flakes or powder
AppearanceFree-flowing, crystalline solid at room temperature
Approximate Molecular Weight (Mn)3,350 g/mol
Hydroxyl Number32–36 mg KOH/g
Acid Number≤ 0.5 mg KOH/g
Water Content≤ 1.0% (by Karl Fischer)
Cloud Point (1% aqueous solution)≥ 95°C


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