752002

Ethyl methyl carbonate

98%

• Synonyme(s) : Carbonic acid ethyl methyl ester, EMC, Methyl ethyl carbonate
• Formule empirique (notation de Hill): C₄H₈O₃
• Numéro CAS: 623-53-0
• Poids moléculaire : 104.10
• Numéro MDL: MFCD00191398
• Code UNSPSC : 26111700
• ID de substance PubChem : 329766259
• Nomenclature NACRES : NA.22

Propriétés

• Pureté: 98%
• Forme: liquid
• Indice de réfraction: n20/D 1.378
• Densité: 1.006 g/mL at 25 °C
• Chaîne SMILES: CCOC(=O)OC
• InChI: 1S/C4H8O3/c1-3-7-4(5)6-2/h3H2,1-2H3
• Clé InChI: JBTWLSYIZRCDFO-UHFFFAOYSA-N

Description

Description générale

Ethyl methyl carbonate (EMC) is the simplest asymmetric ester. It can be prepared via transesterification between dimethyl carbonate (DMC) and ethanol with mild reaction conditions. It is used as an intermediate for the synthesis of various compounds. Additionally, EMC is also used as an excellent co-solvent in the electrolyte of lithium-ion batteries.

Application

Ethyl methyl carbonate can be used as:      

• A solvent for various reactions including esterification and amidation.   
• An electrolyte in the development of graphite-based dual-ion batteries due to its ability reduces charge-transfer resistance, polarization, and self-discharge of graphite electrodes. It also enhances Coulombic efficiency, cycle, and rate performances.

Informations sur la sécurité

• Pictogrammes: GHS02
• Mention d'avertissement: Danger
• Mentions de danger: H225
• Conseils de prudence: P210 - P233 - P240 - P241 - P242 - P243
• Classification des risques: Flam. Liq. 2
• Code de la classe de stockage: 3 - Flammable liquids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): 75.0 °F
• Point d'éclair (°C): 23.9 °C