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Sodium ethoxide

Sodium ethoxide
Sodium ethoxide structure
CAS No.
141-52-6
Chemical Name:
Sodium ethoxide
Synonyms
NE-21;EtONa;NaOEt;ethoxysodium;JACS-141-52-6;causticalcohol;SODIUM ETHOXIDE;SODIUM ETHYLATE;Sodiun ethylate;Natriumethanolat
CBNumber:
CB6100652
Molecular Formula:
C2H5NaO
Formula Weight:
68.05
MOL File:
141-52-6.mol

Sodium ethoxide Properties

Melting point:
260 °C
Boiling point:
91°C
Density 
0.868 g/mL at 25 °C
vapor density 
1.6 (vs air)
vapor pressure 
<0.1 mm Hg ( 20 °C)
refractive index 
n20/D 1.386
Flash point:
48 °F
storage temp. 
Store at +15°C to +25°C.
solubility 
Soluble in ethanol and methanol.
form 
Liquid
color 
Yellow to brown
Specific Gravity
0.868
PH
13 (5g/l, H2O, 20℃)
Water Solubility 
Miscible
Sensitive 
Moisture Sensitive
Hydrolytic Sensitivity
7: reacts slowly with moisture/water
Merck 
14,8539
BRN 
3593646
Stability:
Reacts violently with acids, water. Incompatible with chlorinated solvents, moisture. Absorbs carbon dioxide from the air. Highly flammable.
CAS DataBase Reference
141-52-6(CAS DataBase Reference)
FDA UNII
1I9504387J
EPA Substance Registry System
Ethanol, sodium salt (141-52-6)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS02,GHS05,GHS08,GHS09
Signal word  Danger
Hazard statements  H318-H228-H251-H314-H225-H371-H411
Precautionary statements  P301+P330+P331-P210-P235+P410-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P260-P260h-P405-P501a
Hazard Codes  F,C,Xi,N
Risk Statements  11-14-34-36/37/38-68/20/21/22-51/53-20/21/22
Safety Statements  8-16-26-43-45-36/37/39-36-61
RIDADR  UN 3274 3/PG 2
WGK Germany  1
3-8-10-23
Autoignition Temperature 30 - 50 °C
TSCA  Yes
HazardClass  4.2
PackingGroup  II
HS Code  29051900
Toxicity LD50 orally in Rabbit: 598 mg/kg

Sodium ethoxide price More Price(38)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 156248 Sodium ethoxide 95% 141-52-6 5g $41.8 2021-12-16 Buy
Sigma-Aldrich 156248 Sodium ethoxide 95% 141-52-6 100g $57.4 2021-12-16 Buy
TCI Chemical S0547 Sodium Ethoxide >95.0%(T) 141-52-6 100g $29 2021-12-16 Buy
TCI Chemical S0548 Sodium Ethoxide (ca. 20% in Ethanol) 141-52-6 500mL $55 2021-12-16 Buy
Alfa Aesar L06230 Sodium ethoxide, 96% 141-52-6 500g $72.6 2021-12-16 Buy

Sodium ethoxide Chemical Properties,Uses,Production

Chemical Properties

White powder, sometimes having brownish tinge; readily hydrolyzes to alcohol and sodium hydroxide.

Physical properties

White or yellowish powder; hygroscopic; darkens and decomposes on exposure to air; decomposes in water forming sodium hydroxide and ethanol; dissolves in absolute ethanol.

Uses

Sodium ethoxide is used in organic synthesis for condensation reactions. It also is a catalyst in many organic reactions.

Uses

Sodium ethoxide, 21% w/w in ethanol is used as a strong base in organic synthesis. It finds application in various chemical reactions such as condensation, esterification, alkoxylation and etherifcation. It is actively involved in Claisen condensation, Stobbe reaction and Wolf-kishner reduction. It is an important starting material for the synthesis of ethyl ester and diethyl ester of malonic acid. In Williamson ether synthesis, it reacts with ethyl bromide to form diethyl ether.

Definition

ChEBI: An organic monosodium salt that has ethoxide as the counterion.

Preparation

Sodium ethoxide is prepared by reacting sodium with absolute ethanol:
2Na + 2C2H5OH → 2C2H5ONa + H2
Sodium in small quantities is added to absolute alcohol at 10°C. The temperature is raised to warming (to about 38°C). The mixture is cooled again and sodium and absolute alcohol are added gradually followed by careful warming. The process is repeated to obtain a sufficient yield of the p

Hazard

As for caustic soda, ethanol. Sodium hydroxide is formed when sodium ethylate is exposed to moisture.

Purification Methods

It is a hygroscopic powder which should be stored under N2 in a cool place. A likely impurity is EtOH which can be removed by warming at 60-80o under high vacuum. It is hydrolysed by H2O to yield NaOH and EtOH. Other impurities, if kept in air for long periods are NaOH and Na2CO3. In this case the powder cannot be used if these impurities affect the reactivity, and a fresh sample should be acquired [IR: Seubold J Org Chem 21 156 1956]. [Beilstein 1 H 311, 1 IV 1289.]

Sodium ethoxide Preparation Products And Raw materials

Raw materials

Preparation Products


Sodium ethoxide Suppliers

Global( 359)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Hefei TNJ Chemical Industry Co.,Ltd.
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Hebei Crovell Biotech Co Ltd
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View Lastest Price from Sodium ethoxide manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2022-01-14 Sodium ethoxide
141-52-6
US $10.00 / Kg/Bag 1g 99% 50tons per month Wuhan Mulei New Material Technology Co. Ltd
2021-12-01 Solid Sodium Ethylate
141-52-6
US $9.00 / ASSAYS 1ASSAYS 99% 10000kg Hebei Crovell Biotech Co Ltd
2021-11-08 Sodium ethoxide
141-52-6
US $10.00 / KG 1KG 99.9% 100MT/Month Wuhan wingroup Pharmaceutical Co., Ltd

Sodium ethoxide Spectrum


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