2-Ethyl Hexyl Acrylate

2-Ethyl Hexyl Acrylate

CAS Number: 103‑11‑7

Synonyms: 2‑EHA; Octyl acrylate; 2‑Ethylhexyl 2‑propenoate

Chemical Formula:C₁₁H₂₀O₂

Product Introduction

A clear, colorless liquid with a mild, pleasant odor. A hydrophobic acrylic monomer used to impart low-temperature flexibility, moisture resistance, and softness to copolymers for adhesives, coatings, inks, and sealants.

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Key Properties

  • Melting Point: approx. −90 °C
  • Boiling Point: 214–219 °C (lit.)
  • Density: ~0.885 g/mL @ 25 °C
  • Vapor Pressure: ~0.15 mmHg @ 20 °C
  • Flash Point: ~82 °C (175 °F)
  • Vapor Density: ~6× air
  • Water Solubility: <1 mg/mL; fully miscible with organic solvents

Applications

  • Critical monomer for acrylate adhesives (especially pressure-sensitive)
  • Used in elastomeric coatings, inks, sealants, textile finishes, rubbers, and UV-curable resins

Safety & Handling

  • Polymerizes easily—often inhibited and stored under cool conditions; avoid heat and light
  • Flammable liquid/vapor; vapor may form explosive mixtures >82 °C
  • Irritant to skin, eyes, and respiratory system—use gloves, goggles, ventilation
  • Heavier-than-air vapor—beware of low-lying pockets; grounding recommended during transfer

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