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00768

Sigma-Aldrich

1-Ethyl-3-methylimidazolium tetrafluoroborate

for electrochemistry, ≥99.0% (HPLC)

Synonym(s):

EMIMBF4

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About This Item

Empirical Formula (Hill Notation):
C6H11BF4N2
CAS Number:
143314-16-3
Molecular Weight:
197.97
MDL number:
MFCD00216668
UNSPSC Code:
12352100
PubChem Substance ID:
329747135
NACRES:
NA.22

grade

for electrochemistry

Quality Level

100

assay

≥99.0% (HPLC)

form

liquid

impurities

≤200 ppm water

refractive index

n20/D 1.413 (lit.)

bp

>350 °C (lit.)

mp

15 °C (lit.)

density

1.294 g/mL at 25 °C (lit.)

anion traces

bromide (Br-): ≤10 mg/kg
chloride (Cl-): ≤10 mg/kg
nitrate (NO3-): ≤10 mg/kg
sulfate (SO42-): ≤10 mg/kg

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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Application

1-Ethyl-3-methylimidazolium tetrafluoroborate is a room temperature ionic liquid widely used as an electrolyte in electrochemical studies. Its diffusion coefficient, 13C spin-lattice relaxation times, and nuclear Overhauser enhancements have been analyzed using NMR techniques to study its hydrogen bonding. Some of its fundamental physical and chemical properties such as density, viscosity, thermal stability, surface tension, refractive index and pH have been studied over a wide range of temperature.

pictograms

Exclamation markEnvironment
GHS07,GHS09

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

235.4 °F - closed cup

flash_point_c

113 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Electrochemical study of copper in a basic 1-ethyl-3-methylimidazolium tetrafluoroborate room temperature molten salt
Chen PY and Sun IW
Electrochimica Acta, 45(3), 441-450 (1999)
NMR evidence of hydrogen bonding in 1-ethyl-3-methylimidazolium-tetrafluoroborate room temperature ionic liquid
Huang JF, et al.
Inorgorganica Chimica Acta, 320(1-2), 7-11 (2001)
Physical and electrochemical properties of 1-alkyl-3-methylimidazolium tetrafluoroborate for electrolyte
Nishida T, et al.
Journal of Fluorine Chemistry, 120(2), 135-141 (2003)
The Room Temperature Ionic Liquid 1-Ethyl-3-methylimidazolium Tetrafluoroborate: Electrochemical Couples and Physical Properties.
Fuller J, et al.
Journal of the Electrochemical Society, 144(11), 3881-3886 (1997)
Sungwon Lee et al.
Nature communications, 5, 5898-5898 (2014-12-20)
To measure electrophysiological signals from the human body, it is essential to establish stable, gentle and nonallergic contacts between the targeted biological tissue and the electrical probes. However, it is difficult to form a stable interface between the two for
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Ionic Liquids for Electrochemical Applications

Over the past decade, Ionic Liquids have attracted much interest for their use as non-aqueous electrolytes in electrochemical applications. In this context, their conductivity as well as their electrochemical stability are the most important physical properties.

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