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141-52-6 - Sodium ethoxide, 21% w/w in ethanol - Sodium ethylate - L13083 - Alfa Aesar

L13083 Sodium ethoxide, 21% w/w in ethanol

Codice CAS
141-52-6
Sinonimi
Sodium ethylate

Dimensioni Prezzo ($) Quantità Disponibilità
100ml 21,69
500ml 49,75
2500ml 167,89
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Sodium ethoxide, 21% w/w in ethanol

MDL
MFCD00012417
EINECS
205-487-5

Proprietà chimiche

Formula
C2H5NaO
Peso formula
68.05
Punto di infiammabilità
20°(68°F)
Densità
0.868
Indice di rifrazione
1.3875
Sensibilità
Air & Moisture Sensitive
Solubilità
Miscible with alcohol.

Applicazioni

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.

Note

Moisture sensitive. It hydrolyzes rapidly into sodium hydroxide in the presence of moist air. Incompatible with water, strong bases, acids, oxidizing agents, alkali metals, strong oxidizing agents, ammonia, acid chlorides, acid anhydrides, reducing agents, peroxides, acids and chlorinated solvents.

Letteratura

Abduh, M. Y.; van Ulden, W.; Kalpoe, V.; van de Bovenkamp, H. H.; Manurung, R.; Heeres, H. J. Biodiesel synthesis from Jatropha curcas L. oil and ethanol in a continuous centrifugal contactor separator. Eur. J. Lipid Sci. Technol. 2013, 115 (1), 123-131.

Parsons, R. V.; Cenkowski, S.; Sorensen, J. L.; Beta, T.; Arntfield, S. D. Hemicellulose polysaccharide recovery from flax shive using alkaline solutions with sodium ethoxide pretreatment. Ind. Crops Prod. 2013, 44, 165-170.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H225-H314

Highly flammable liquid and vapour. Causes severe skin burns and eye damage.

Dichiarazioni precauzionali: P210-P260-P280-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Do not breathe dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/physician. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Merck
14,8613
Beilstein
3593646
Classe di rischio
3
Gruppo di imballaggio
II
Codice tariffe armonizzato
2905.19
TSCA
Yes

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