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CAS 141-52-6 Sodium ethoxide liquid
Overview
Sodium Ethoxide (sodium ethylate, CAS 141-52-6, C₂H₅ONa) is a strong alkoxide base widely used in biodiesel ethyl ester production, pharmaceuticals, agrochemical intermediates, polymer modification, and fine chemicals. It efficiently promotes transesterification, condensation (e.g., Claisen/Dieckmann/Knoevenagel), elimination, and selective deprotonation/alkylation steps with fast, clean kinetics. Supplied as a free-flowing solid or ethanolic solutions (e.g., 18–21% w/w or custom), it offers high basicity and excellent compatibility in ethanol systems. Each lot is controlled for assay, low moisture, and low carbonate, with COA/TDS available. Highly moisture-sensitive and caustic—protect from air/CO₂ and handle dry;
Product Description
CAS 141-52-6 Sodium ethoxide
Sodium ethoxide is a versatile alkoxide base widely applied in organic synthesis, biodiesel (ethyl ester) production, polymer modification, pharmaceuticals, and fine chemicals. As a strong base and efficient catalyst, it promotes transesterification, condensation (Claisen/Dieckmann/Knoevenagel), elimination, and selective deprotonation/alkylation, while serving as a convenient sodium source in alkoxide-mediated transformations and ligand preparation. Offered as free-flowing solids or ethanolic solutions (e.g., 18–21% w/w), it delivers high basicity, excellent ethanol compatibility, and fast, clean kinetics—making it an essential tool from lab development to continuous industrial production.
Sodium Ethoxide (Sodium Ethylate) — Product Specification
CAS: 141-52-6 | Formula: C₂H₅ONa | Synonyms: Sodium ethylate; NaOEt
Identity & Form
| Product form | Free-flowing solid (powder/flakes) or ethanolic solution |
|---|---|
| Typical solution concentrations | 18–21% w/w in ethanol (other concentrations on request) |
| Assay / Active base | Titration (reported on COA); solution concentration tolerance typically ±1.0% (abs.) |
| Stabilizers | None added |
| Documents | COA · TDS · SDS · DG documents |
Solution Grade — 21% w/w in Ethanol (example)
| Appearance | Clear, colorless to slightly yellow liquid; free from visible particulates |
|---|---|
| Assay (as C₂H₅ONa) | 21.0% ± 1.0% (acid–base titration) |
| Ethanol content | Balance (approx. 79% w/w) |
| Free alkali (as NaOH) | ≤ 0.50% (w/w) |
| Sodium carbonate (Na₂CO₃) | ≤ 0.50% (w/w) |
| Water (Karl Fischer) | ≤ 0.30% (w/w) |
| Color (APHA) | ≤ 50 |
Solid Grade — Powder/Flakes (example)
| Appearance | White to off-white, free-flowing powder or flakes |
|---|---|
| Assay (as C₂H₅ONa) | ≥ 95.0% (typical commercial grade) |
| Sodium hydroxide (NaOH) | ≤ 3.0% |
| Sodium carbonate (Na₂CO₃) | ≤ 2.0% |
| Water | ≤ 1.0% |
Applications & Handling
| Main uses | Transesterification (ethyl biodiesel), base-catalyzed condensation/alkylation, pharmaceutical & agro intermediates, polymer modification |
|---|---|
| Handling | Moisture- and CO₂-sensitive; corrosive. Operate in dry conditions with appropriate PPE. Solution grade contains flammable ethanol—ensure ventilation and ignition control. |
| Storage | Tightly closed under dry inert atmosphere; keep cool and away from acids/water/oxidants. |
Packaging & Logistics
| Solution (18–21%) | 200 L drums · 1000 L IBC (custom on request) |
|---|---|
| Solid (powder/flakes) | 25 kg drums/bags with protective liner (custom packing on request) |
| Ports | Qingdao · Shanghai · Tianjin |
| To quote (please specify) | Grade (solution % or solid), pack size, destination country/port, and required documents |
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PACKING AND DELIVERY
Packing and delivery
We offer secure and compliant packaging for a wide range of chemical products, from laboratory bottles (100 mL, 250 mL, 500 mL) to customized bulk containers. All shipments follow international hazardous goods standards and include complete documentation such as COA and SDS. With reliable global logistics partners, we ensure safe, fast, and efficient delivery by air, sea, or land according to customer needs.