CAS 623-53-0 Ethyl Methyl Carbonate - Materials / Alfa Chemistry

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Ethyl Methyl Carbonate

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Catalog Number

ACM623530

CAS Number

623-53-0

Product Name

Ethyl Methyl Carbonate

Structure

Category

Electrolytes; Lithium-Ion Batteries; Battery Materials

Synonyms

Carbonic Acid Ethyl Methyl Ester

Description

Liquid

IUPAC Name

ethyl methyl carbonate

Molecular Weight

104.11

Molecular Formula

C4H8O3

Canonical SMILES

CCOC(=O)OC

InChI

InChI=1S/C4H8O3/c1-3-7-4(5)6-2/h3H2,1-2H3

InChI Key

JBTWLSYIZRCDFO-UHFFFAOYSA-N

Boiling Point

107 °C

Flash Point

27 °C

Purity

>98.0%(GC)

Appearance

Colorless to Almost colorless clear liquid

Application

Ethyl methyl carbonate (EMC) serves as a crucial component in the realm of lithium-ion batteries, primarily functioning as a high-quality co-solvent in nonaqueous electrolytes. This colorless, transparent liquid, characterized by its slight irritant odor, plays a pivotal role in enhancing the performance of such batteries. By increasing the solubility of lithium ions, EMC significantly boosts both the energy density and discharge capacity of the batteries. Furthermore, its excellent thermal conductivity and low electrical resistance help in extending the operational temperature range, thereby improving the overall safety and longevity of the battery systems. Its synthesis often involves metal oxide-catalyzed transesterification using dimethyl carbonate and diethyl carbonate, achieving high yields in either liquid or vapor phase reactions. Overall, EMC is vital for improving the electrochemical performance of lithium-ion batteries, due to its ability to enhance the battery's capacity and efficiency while ensuring safety and durability.

Complexity

Covalently-Bonded Unit Count

EC Number

433-480-9;613-014-2

Exact Mass

104.047344g/mol

Formal Charge

Hazard Statements

H226 : Flammable liquid and vapor.

Heavy Atom Count

MDL Number

MFCD00191398

Monoisotopic Mass

104.047344g/mol

Precautionary Statements

P501 : Dispose of contents/ container to an approved waste disposal plant.P240 : Ground/bond container and receiving equipment.P210 : Keep away from heat/sparks/open flames/hot surfaces. No smoking.P233 : Keep container tightly closed.P243 : Take precautionary measures against static discharge.P241 : Use explosion-proof electrical/ ventilating/ lighting/ equipment.P242 : Use only non-sparking tools.P280 : Wear protective gloves/ eye protection/ face protection.P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.P403 + P235 : Store in a well-ventilated place. Keep cool.

Refractive Index

1.38

Rotatable Bond Count

Signal Word

Warning

Specific Gravity

1.01

UNII

OU358HAE25

XLogP3

0.9

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