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Sodium ethoxide

CAS Number
141-52-6
EC Number
205-487-5
Chemical Formula
C2H6O.Na
Molecular Weight
68.05 g/mol

Description

Sodium ethoxide (CAS 141-52-6 ), also sold as sodium ethylate, is a strong alkoxide base used as a catalyst and reagent across pharmaceutical synthesis and specialty chemical manufacturing. NaOEt drives condensation, cyclization, and transesterification reactions where controlled basicity and reactivity are critical to process efficiency and high-quality chemical output. In pharmaceutical manufacturing, sodium ethoxide catalyzes the synthesis of active pharmaceutical ingredients including barbiturates, sulfonamides, and vitamin B1, where precise reaction control affects yield. Agrochemical producers use it as a base catalyst in the synthesis of herbicides and pesticide intermediates. In biodiesel production, sodium ethylate is the preferred transesterification catalyst. It converts triglycerides to fatty acid ethyl esters, offering faster reaction rates than sodium hydroxide in anhydrous conditions. Specialty chemical formulators also apply it in Claisen condensations. Sodium ethoxide is supplied as a solution in ethanol, typically at 20–21% concentration, and as a dry powder for moisture-sensitive applications to ensure maximum stability and performance. The solution grade is the most commercially prevalent form, favored for ease of handling in large-scale continuous processes. Dry powder grades are available for laboratory and pharmaceutical applications. These powder grades are ideal for processes requiring anhydrous conditions. Our material meets rigorous industrial specifications to ensure consistent results across all manufacturing sectors. Contact us for supply of Sodium ethoxide Request Quote

Other Names (Synonyms)

sodium ethylate | NaOEt | caustic alcohol | SODIUM ETHANOLATE | Ethanol, sodium salt | Ethyl alcohol, sodium salt | 1I9504387J | Ethanol, sodium salt (1:1)

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point260 °C
Boiling Point91°C
Density0.868 g/cm³
Flash Point48 °F
AppearanceWhite powder, sometimes having brownish tinge
readily hydrolyzes to alcohol and sodium hydroxide.
ColorYellow to brown
FormLiquid
Water SolubilityMiscible
Vapor Pressure<0.1 mm Hg ( 20 °C)
Refractive Indexn 20/D 1.386
pH13 (5g/l, H2O, 20℃)

Safety & Handling

Danger
GHS02· FlammableGHS05· Corrosive

Hazard Statements

H228Flammable solid
H251Self-heating; may catch fire
H314Causes severe skin burns and eye damage
H318Causes serious eye damage

Precautionary Statements

P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P235Keep cool.
P240Ground and bond container and receiving equipment.
P241Use explosion-proof equipment.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P321Specific treatment (see … on this label).
P363Wash contaminated clothing before reuse.
P405Store locked up.
P407Maintain air gap between stacks/pallets.
P410Protect from sunlight.
P413Store bulk masses greater than … kg/… lbs at temperatures not exceeding … °C/…°F.
P420Store away from other materials.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P378Use … for extinction.
P331Rinse mouth. Do NOT induce vomiting.
P354IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29051900
UN Number3274
ADR Class3
Packing GroupII
Storage Class4.2 - Pyrophoric and self-heating hazardous materials
WGK (Germany)1