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105-58-8 - Diethyl carbonate, 99+% - Carbonic acid diethyl ester - Ethyl carbonate - A12477 - Alfa Aesar

A12477 Diethyl carbonate, 99+%

CAS-Nummer
105-58-8
Synonyme
Carbonic acid diethyl ester
Ethyl carbonate

Größe Preis ($) Menge Verfügbarkeit
500ml 34,71
2500ml 83,84
10000ml 288,40
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Diethyl carbonate, 99+%

MDL
MFCD00009107
EINECS
203-311-1

Chemische Eigenschaften

Formel
(CH3CH2O)2C=O
Molmasse
118.13
Schmelzpunkt
-43°
Siedepunkt
126-128°
Flammpunkt
31°(87°F)
Dichte
0.975
Brechungsindex
1.3845
Sensitivität
Moisture Sensitive
Löslichkeit
Miscible with diehtyl ether, ethanol and chloroform.Immiscible with water.

Anwendungen

Diethyl carbonate is esters, beta-enamino esters, carbamates and unsymmetrical alkyl carbonates. It is an active component of electrolytes used in lithium which is used as a solvent for cellulose ethers, nitro cellulose, natural and synthetic resin and in erythromycin intramuscular injections. It is also used in the synthesis of 3-ethyl-4-methyl-5-phenyl-3H-oxazol-2-one, phenobarbital, pyrethrum batteries.

Bemerkungen

Store in cool place. Moisture sensitive. Incompatible with strong acids, oxidizing agents, strong bases and reducing agents.

Literaturverweise

Carboethoxylates carbanions derived from ketones, nitriles, esters, etc. For examples, see: Org. Synth. Coll., 4, 461 (1963); 5, 198 (1973); 6, 611 (1988). Arylacetic esters are converted to arylmalonic diesters: Org. Prep. Proced. Int., 6, 5 (1974). The dianions of carboxylic acids can be carboethoxylated with diethyl carbonate (or Ethyl­ chloroformate, L06311), to give monoesters of malonic acids: Tetrahedron Lett., 2721 (1974).

For use as an alkylating agent for alcohols, phenols, thiols, etc., see Dimethyl­ carbonate, A13104.

1,3-Diols undergo dehydration to give oxetanes; see, e.g.: Tetrahedron Lett., 24, 5571 (1983):

Srilakshmi, M.; Krishna, T. S.; Narendra, K.; Dey, R.; Ratnakar, A. Influence of alkyl group and temperature on excess thermodynamic properties of diethyl carbonate and their binary mixtures at 0.1 MPa. J. Mol. Liq. 2015, 211, 854-867.

Li, F.; Li, H.; Wang, L.; He, P.; Cao, Y. Magnesium oxide nanosheets as effective catalysts for the synthesis of diethyl carbonate from ethyl carbamate and ethanol. Catal. Sci. Technol. 2015, 5 (2), 1021-1034.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H226-H315-H319-H335

Flammable liquid and vapour. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Sicherheitshinweise: P210-P261-P280-P240-P303+P361+P353-P305+P351+P338-P304+P340-P362-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. Ground/bond container and receiving equipment. 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 INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Merck
14,3780
Beilstein
956591
Gefahrenklasse
3
Verpackungsgruppe
III
Harmonized Tariff Code
2920.90
TSCA
Yes
RTECS
FF9800000

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