Sodium ethoxide

Product Name: Sodium ethoxide
CAS No.: 141-52-6
Chemical Name: Sodium ethoxide
Synonyms: NaOEt;SODIUM ETHANOLATE;EtONa;SODIUM ETHYLATE;NE-21;ethoxysodium;Sodium ethoxide solution;Sodium ethoxide-ethanol solution;JACS-141-52-6;causticalcohol
CBNumber: CB6100652
Molecular Formula: C2H5NaO
Formula Weight: 68.05
MOL File: 141-52-6.mol

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Sodium ethoxide Property

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
Specific Gravity: 0.868
color: Yellow to brown
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
Exposure limits: ACGIH: STEL 1000 ppm
OSHA: TWA 1000 ppm(1900 mg/m3)
NIOSH: IDLH 3300 ppm; TWA 1000 ppm(1900 mg/m3)
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)
EPA Substance Registry System: Ethanol, sodium salt (141-52-6)

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Safety

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
F: 3-8-10-23
Autoignition Temperature: 30 - 50 °C
TSCA: Yes
HazardClass: 4.2
PackingGroup: II
HS Code: 29051900
Hazardous Substances Data: 141-52-6(Hazardous Substances Data)
Toxicity: LD50 orally in Rabbit: 598 mg/kg

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H251Self-heating; may catch fire

H314Causes severe skin burns and eye damage

H371May cause damage to organs

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P235Keep cool.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 8.18199
Product name: Sodium ethoxide
Purity: (20% solution in ethanol) for synthesis
Packaging: 100ML
Price: $38
Updated: 2024/03/01

Sigma-Aldrich

Product number: 8.18199
Product name: Sodium ethoxide
Purity: (20% solution in ethanol) for synthesis
Packaging: 1L
Price: $116
Updated: 2024/03/01

Sigma-Aldrich

Product number: 8.18199
Product name: Sodium ethoxide
Purity: (20% solution in ethanol) for synthesis
Packaging: 50KG
Price: $1940
Updated: 2024/03/01

Sigma-Aldrich

Product number: 156248
Product name: Sodium ethoxide
Purity: 95%
Packaging: 5g
Price: $51.9
Updated: 2024/03/01

Sigma-Aldrich

Product number: 156248
Product name: Sodium ethoxide
Purity: 95%
Packaging: 100g
Price: $69.9
Updated: 2024/03/01

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Sodium ethoxide Chemical Properties,Usage,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

General Description

Sodium ethoxide is an alkoxide salt mainly used as a strong base in organic reactions such as deprotonation, dehydration and dehalogenation.

Hazard

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

Flammability and Explosibility

Highly flammable

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

Ethanol Solid sodium hydroxide Cyclohexane DL-1-Phenethylalcohol Sodium Dehydrolyzing agent weak Sodium hydroxide

Preparation Products

Diethyl dipropylmalonate Ethametsulfuron-methyl Dimethyl ethylmalonate Triamterene Diethyl isoamylmalonate 2-METHOXYPROPANDIOIC ACID ETHYL METHYL ESTER ETHYL ISONICOTINOYLACETATE 2-Methoxy-3-methylpyrazine 2-HYDRAZINO-6-METHYLPYRIMIDIN-4-OL 2-ETHOXY-MALONIC ACID DIETHYL ESTER 2-METHYLUNDECANAL 2,4-DIETHOXYPYRIMIDINE 2，2-dichloro-1-(4-ethyoxy phenyl)cy-clopropane carboxylic acid 3-CARBETHOXY-2-PIPERIDONE HYDROXYLAMINE 2,4,6-TRIAMINO-5-NITROPYRIMIDINE Polysorbate 20 Methyltriethoxysilane P-AMINO-DL-PHENYLALANINE Diethyl butylmalonate UNICONAZOLE Gliclazide Cyclobutanemethanol 3-Furoic acid polysorbate 40 nony phenyl polyoxyethylene (50～150) ether DIETHYL 2-(2-CYANOETHYL)MALONATE 2-Amino-4,6-dihydroxypyrimidine 4-TERT-BUTYL-2,6-DIMETHYL BENZYL ACETATE Tween 80 NAFRONYL Quinazoline, 2-methyl- (6CI,7CI,8CI,9CI) 4-(4-FLUOROBENZYLOXY)BENZALDEHYDE Triethyl 1,1,2-ethanetricarboxylate 2-(2-MORPHOLIN-4-YLETHOXY)ANILINE 3-Aminopyrrolidine Ethyl 3-methyl-3-phenylglycidate 2-Ethoxythiazole FEMA 2310 N4-Methylcytosine

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View Lastest Price from Sodium ethoxide manufacturers

Hebei Chuanghai Biotechnology Co,.LTD

Product: Solid Sodium Ethylate 141-52-6
Price: US $9.00/ASSAYS
Min. Order: 1ASSAYS
Purity: 99%
Supply Ability: 10000kg
Release date: 2024-08-21

Hebei Weibang Biotechnology Co., Ltd

Product: SODIUM ETHOXIDE 141-52-6
Price: US $10.00/Kg/Drum
Min. Order: 1KG
Purity: 99%
Supply Ability: 100
Release date: 2020-12-08

Hebei Mojin Biotechnology Co., Ltd

Product: SODIUM ETHOXIDE 141-52-6
Price: US $0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 50000KG/month
Release date: 2023-09-08

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JACS-141-52-6