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900772

Sigma-Aldrich

1-Ethyl-3-methylimidazolium tetrafluoroborate

≥99%, <1000 ppm H2O

Synonym(s):

1-Ethyl-3-methyl-1H-imidazolium tetrafluoroborate, 1-Methyl-3-ethylimidazolium tetrafluoroborate, EMIMBF4

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About This Item

Empirical Formula (Hill Notation):
C6H11BF4N2
CAS Number:
Molecular Weight:
197.97
MDL number:
UNSPSC Code:
12352100
NACRES:
NA.23

Quality Level

Assay

≥99%

form

liquid

impurities

<1000 ppm H2O

refractive index

n20/D 1.413 (lit.)

bp

>350 °C (lit.)

mp

15 °C (lit.)

density

1.294 g/mL at 25 °C (lit.)

application(s)

battery manufacturing

SMILES string

F[B-](F)(F)F.CCn1cc[n+](C)c1

InChI

1S/C6H11N2.BF4/c1-3-8-5-4-7(2)6-8;2-1(3,4)5/h4-6H,3H2,1-2H3;/q+1;-1

InChI key

CUNYTRQQXKCRTJ-UHFFFAOYSA-N

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General description

1-Ethyl-3-methylimidazolium tetrafluoroborate is a class of electrolytic materials that can be used in the fabrication of lithium-ion batteries. Lithium-ion batteries consist of anode, cathode, and electrolyte with a charge-discharge cycle. These materials enable the formation of greener and sustainable batteries for electrical energy storage.

Application

Ionic liquids (ILs) are molten salts with melting points lower than 100 °C. They usually consist of pair of organic cation and anion. ILs exhibit unique properties such as nonvolatility, high thermal stability, and high ionic conductivity and find applications as electrolytes in lithium/sodium ion batteries and dye-sensitized solar cells. They are also used as media for synthesis of conducting polymers and intercalation electrode materials.

Pictograms

Exclamation markEnvironment

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup


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Masayoshi Watanabe et al.
Chemical reviews, 117(10), 7190-7239 (2017-01-14)
Ionic liquids (ILs) are liquids consisting entirely of ions and can be further defined as molten salts having melting points lower than 100 °C. One of the most important research areas for IL utilization is undoubtedly their energy application, especially
Dandan Han et al.
Molecules (Basel, Switzerland), 15(4), 2405-2426 (2010-04-30)
Ionic liquids (ILs) have been applied in different areas of separation, such as ionic liquid supported membranes, as mobile phase additives and surface-bonded stationary phases in chromatography separations and as the extraction solvent in sample preparations, because they can be
Ionic liquids and their solid-state analogues as materials for energy generation and storage.
MacFarlane DR, et al.
Nature Reviews. Materials, 1, 15005-15005 (2016)
Electrodes with high power and high capacity for rechargeable lithium batteries
Kang K, et al.
Science, 311(5763), 977-980 (2006)
Challenges for rechargeable Li batteries
Goodenough JB and Kim Y
Chemistry of Materials, 22(3), 587-603 (2009)

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