2‑Hydroxyethyl Methacrylate

2‑Hydroxyethyl Methacrylate

CAS Number:868‑77‑9

Chemical Formula:C₆H₁₀O₃

Product Introduction

A clear, low-viscosity liquid with an acrylate odor. A reactive, bifunctional monomer combining vinyl polymerization and hydroxyl functionality—ideal for hydrophilic and cross-linked polymer systems.

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Key Properties

  • Density: ~1.07 g/mL @ 20 °C
  • Melting Point: –12 °C
  • Boiling Point: ~211–250 °C (atmospheric/decomp.)
  • Flash Point: ~96–106 °C
  • Vapor Pressure: ~0.08 hPa @ 20 °C
  • Water Solubility: Fully miscible; hydrophilic

Applications

  • UV-curable inks and coatings for superior adhesion
  • Dental materials, artificial nails, biocompatible hydrogels (e.g., PHEMA), adhesives, lacquers and geotechnical grouts
  • Used as a reactive diluent in unsaturated polyester resins (UPR)

Applications

  • Polymerizes readily—must contain inhibitors (e.g., MEHQ); store with some oxygen to keep stabilizer active
  • Flammable liquid; vapors may be explosive at ≥97 °C
  • Skin/eye irritant; may sensitize skin
  • Use PPE, keep containers cool, earthing during handling to prevent static

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