Your location:HOME > PRODUCTS  > Organic Chemicals

Methoxypolyethylene Glycol 500 (MPEG 500)

Methoxypolyethylene Glycol 500 (MPEG 500)

CAS No.:9004-74-4
Molecular Formula:CH₃O-(C₂H₄O)ₙ-OH, average n≈11
Average Molecular Weight:~500 g/mol

1. Product Identification

  • Product Name:Methoxypolyethylene Glycol 500
  • Synonyms:MPEG 500, Poly(ethylene glycol) methyl ether 500, mPEG 500
  • Appearance:Clear, colorless to pale yellow viscous liquid
  • Grade:Industrial grade

2. Physical and Chemical Properties

  • Physical State:Liquid
  • Hydroxyl Value:105–115 mg KOH/g
  • pH (5% aqueous solution):5.0–7.0
  • Moisture:≤0.5%
  • Color (APHA):≤50
  • Solubility:Soluble in water, ethanol, acetone and many organic solvents
  • Flash Point:>150 °C (closed cup)
  • Viscosity:Low viscosity liquid at room temperature
  • Storage Conditions:Store in dry, cool, well-ventilated area; keep containers tightly sealed; avoid moisture and direct sunlight

3. Hazard Identification

  • GHS Classification:Not classified as hazardous
  • Skin/eye Contact:Mildly irritating; avoid prolonged contact
  • Environmental Hazard:Not classified as hazardous to aquatic environment

4. Packaging

  • Standard Packaging:25 kg drum, 50 kg drum, 200 kg drum
  • Custom Packaging:Available upon request

5. Application

  • Used as emulsifier, dispersant, wetting agent
  • Intermediate for chemical synthesis
  • Used in cosmetics, detergents, lubricants and polymer modification

6. Stability and Reactivity

  • Stability:Stable under normal storage and handling conditions
  • Incompatibility:Strong oxidizing agents
  • Hazardous Decomposition Products:No hazardous decomposition under normal conditions

7. Handling and Storage

  • Handling:Use in well-ventilated area; avoid contact with eyes and skin
  • Storage:Store between 5–35 °C; protect from moisture and heat; keep away from strong oxidizers

8. Typical Specifications

Item Specification
Appearance Clear liquid, colorless to pale yellow
Average Molecular Weight 480–520 g/mol
Moisture ≤0.5%
pH (5% H₂O) 5.0–7.0
Color (APHA) ≤50