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754935

Sigma-Aldrich

Ethyl methyl carbonate

greener alternative

99%

Synonym(s):

Carbonic acid ethyl methyl ester, EMC, Methyl ethyl carbonate

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50 ML
CHF 207.00

CHF 207.00

Estimated to ship on29 March 2025

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50 ML
CHF 207.00

About This Item

Empirical Formula (Hill Notation):
C4H8O3
CAS Number:
623-53-0
Molecular Weight:
104.10
MDL number:
MFCD00191398
UNSPSC Code:
26111700
PubChem Substance ID:
329766467
NACRES:
NA.23

CHF 207.00

Estimated to ship on29 March 2025

Request a Bulk Order

Quality Level

100

Assay

99%

form

liquid

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

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refractive index

n20/D 1.378

bp

101 °C

mp

-55 °C

density

1.006 g/mL at 25 °C

application(s)

battery manufacturing

greener alternative category

, Enabling

SMILES string

CCOC(=O)OC

InChI

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

InChI key

JBTWLSYIZRCDFO-UHFFFAOYSA-N

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General description

Ethyl methyl carbonate (EMC) is a low viscosity solvent, generally prepared by the esterification of chloroformate with ethanol. It can also be prepared by transesterification of dimethyl carbonate (DMC) with ethanol.[1][2]
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Application

EMC is majorly utilized as a co-solvent in the nonaqueous electrolyte. It enhances the energy density and discharge capacity of lithium-ion batteries.[1][2][3][4]

Pictograms

Flame
GHS02

Signal Word

Danger

Hazard Statements

H225

Hazard Classifications

Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

75.0 °F

Flash Point(C)

23.9 °C

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Certificates of Analysis (COA)

Lot/Batch Number
0000389281
0000389281
MKCV1357
0000271604
0000236034

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Lithium difluoro (oxalato) borate/ethylene carbonate+ propylene carbonate+ ethyl (methyl) carbonate electrolyte for LiMn2O4 cathode
Fu MH, et al.
Journal of Power Sources, 195(3), 862-866 (2010)
Zeolitic imidazolate framework as efficient heterogeneous catalyst for the synthesis of ethyl methyl carbonate
Zhou X, et al.
J. Mol. Catal. A: Chem., 366, 43-47 (2013)
Liu J, et al.
Electrochemical Communications, 13(3), 269-269 (2011)
McEwen A, et al.
Journal of the Electrochemical Society, 146(5), 1687-1687 (1999)
Metal-organic frameworks as an acid catalyst for the synthesis of ethyl methyl carbonate via transesterification
Zhou Y, et al.
J. Mol. Catal. A: Chem., 308(1-2), 68-72 (2009)
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Questions

1–3 of 3 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. Hello, does anyone have the enthalpy of combustion of ethyl methyl carbonate? Is for preventing the fire risk at its storage.

    1 answer

    1. The enthalpy of combustion of ethyl methyl carbonate is not determined for this product. This product should be stored in room temperature and kept tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. It is stable under recommended storage conditions.

      For more safety information, please view the product Safety Data Sheet: https://www.sigmaaldrich.com/sds/aldrich/754935

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