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

Polyethylene Glycol PEG300

Dow PolyethyleneGlycol PEG300 is a low-viscosity, water-soluble liquid polymer with average molecular weight ~300 Da. It serves as a versatile solvent, plasticizer, and humectant in pharmaceuticals, cosmetics, and industrial formulations. Non-toxic, non-irritating, and biocompatible, it enhances solubility and stability while meeting USP/EP regulatory standards.
  • polyethylene glycol peg300_eade91c4
  • polyethylene glycol peg300_eade91c4

Features Of Polyethylene Glycol PEG300

  1. Low viscosity liquid at room temperature, ensuring excellent flowability and ease of handling in industrial processes.

  2. High water solubility and hygroscopicity, enabling effective use as a humectant and solvent in aqueous formulations.

  3. Non-toxic, non-irritating, and FDA-approved for select pharmaceutical and cosmetic applications.

  4. Chemically stable under normal storage conditions with low volatility and negligible vapor pressure.

  5. Compatible with a broad range of active ingredients, polymers, and surfactants—ideal for formulation flexibility.

Typical Applications Of Polyethylene Glycol PEG300

  1. Pharmaceutical excipient: used as a solvent, plasticizer, and solubilizer in oral liquids, ointments, and suppositories.

  2. Cosmetic formulation: functions as a moisturizing agent, viscosity modifier, and carrier for fragrances and actives in lotions and serums.

  3. Industrial lubricant and heat transfer fluid in low-temperature applications requiring non-corrosive, biodegradable fluids.

  4. Chemical synthesis: serves as a reaction medium and dispersing agent in polymerization and nanoparticle preparation.

  5. Food-grade processing aid: employed as a glazing agent and moisture retainer in confectionery and edible coatings (where compliant with local regulations).

Specifications Of Polyethylene Glycol PEG300

Chemical TypePolyether diol (polyethylene oxide derivative)
Product FormClear, colorless to pale yellow viscous liquid
AppearanceTransparent, slightly viscous liquid, odorless or faint characteristic odor
Molecular Weight (Avg.)285–315 g/mol
Hydroxyl Value320–370 mg KOH/g
Water Content (Karl Fischer)≤ 1.0% w/w
pH (10% aqueous solution)5.0–7.0
SolubilityCompletely miscible with water, ethanol, acetone, chloroform, and ethyl acetate


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