Sodium ethoxide

Sodium ethoxide

CAS Number:141‑52‑6

Synonyms:Sodium ethylate; Sodium ethanolate

Chemical Formula:CH₃CH₂ONa

Product Introduction

A white to light-yellow hygroscopic powder or as a ~30% solution in ethanol. A strong, non-nucleophilic base widely used in organic synthesis (e.g., Claisen, Wittig, Williamson reactions) and industrial processes.

Physical & Chemical Properties

Form Powder ~30% Solution in Ethanol
Appearance White/light-yellow crystalline Clear to slightly yellow liquid
Melting Pt. ~260 °C (decomposes) N/A
Density ~0.868 g/mL (solution) ~0.9 g/mL
Solubility Reacts in water/alcohols → NaOH + EtOH Fully miscible with ethanol
Reactivity Reacts violently with water/methanol → flammable H₂ Same
NFPA Ratings H2 F2 R1; flammable/violent with moisture

Applications

  • Base for Claisen condensation, Wittig & Williamson ether synthesis
  • Catalyst in biodiesel production, industrial alkoxides, dyes, and pharmaceuticals
  • Ethanol purification / water-removal agent
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