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45590 Sodium ethoxide, 21% w/w soln. in ethanol, packaged under Argon in resealable ChemSeal™ bottles

CAS Number
141-52-6
Synonyms
Sodium ethylate

Stock No. Size Price ($) Quantity Availability
45590-AE 100ml 22.90
45590-AP 500ml 51.40
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Sodium ethoxide, 21% w/w soln. in ethanol, packaged under Argon in resealable ChemSeal™ bottles

MDL
MFCD00012417
EINECS
205-487-5

Chemical Properties

Formula
C2H5NaO
Formula Weight
68.05
Form
Liquid
Flash Point
20°(68°F)
Density
0.868
Refractive Index
1.3850
Storage & Sensitivity
Moisture Sensitive. Ambient temperatures.
Solubility
Miscible with alcohol.

Applications

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.

Notes

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.

Literature References

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.

GHS Hazard and Precautionary Statements

Hazard Statements: H226-H314-H335

Flammable liquid and vapour. Causes severe skin burns and eye damage. May cause respiratory irritation.

Precautionary Statements: P201-P202-P210-P233-P235-P235+P410-P240-P241-P242-P243-P260-P264b-P271-P281-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P310-P363-P370+P378q-P501c

Obtain special instructions before use. Do not handle until all safety precautions have been read and understood. Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Keep container tightly closed. Keep cool. Protect from sunlight. Ground/bond container and receiving equipment. Use explosion-proof electrical/ventilating/lighting/ equipment. Use only non-sparking tools. Take precautionary measures against static discharge. Do not breathe dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Use personal protective equipment as required. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Wash contaminated clothing before reuse. In case of fire: Use CO2, dry chemical, or foam Dispose of contents/ container to an approved waste disposal plant

Other References

Merck
14,8613
Beilstein
3593646
Hazard Class
3
Packing Group
II
Harmonized Tariff Code
2905.19
TSCA
Yes

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