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711721

Sigma-Aldrich

1-Ethyl-3-methylimidazolium tetrafluoroborate

≥98% (HPLC)

Synonym(s):

EMIMBF4

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About This Item

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

Quality Level

Assay

≥98% (HPLC)

form

liquid

impurities

≤0.5% 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.)

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 an air and water stable, room temperature ionic liquid (RTIL). It can be prepared by reacting 1-ethyl-3-methylimidazolium bromide with tetrafluoroboric acid.

Application


  • 1-Ethyl-3-methylimidazolium tetrafluoroborate-doped high ionic conductivity gel electrolytes with reduced anodic reaction potentials for electrochromic devices: This study reports the preparation of a 1-Ethyl-3-methylimidazolium tetrafluoroborate ([Emim] BF4)-doped Poly(methyl methacrylate)(PMMA)-based gel electrolyte for electrochromic applications, showing improved ionic conductivity and reduced anodic reaction potentials (Tang et al., 2017).

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Efficient, halide free synthesis of new, low cost ionic liquids: 1, 3-dialkylimidazolium salts containing methyl-and ethyl-sulfate anions
Holbrey, John D., et al.
Green Chemistry, 4.5, 407-413 (2002)
Crystal structures of frozen room temperature ionic liquids, 1-ethyl-3-methylimidazolium tetrafluoroborate (EMImBF 4), hexafluoroniobate (EMImNbF 6) and hexafluorotantalate (EMImTaF 6), determined by low-temperature X-ray diffraction
Matsumoto, Kazuhiko, et al.
Solid State Sciences, 8.10, 1250-1257 (2006)
Density and Viscosity Measurements for Binary Mixtures of 1-Ethyl-3-methylimidazolium Tetrafluoroborate ([Emim][BF4]) with Dimethylacetamide, Dimethylformamide, and Dimethyl Sulfoxide
Fan, Xian-Heng, Yan-Ping Chen, and Chie-Shaan Su.
Journal of Chemical and Engineering Data, 61.2, 920-927 (2016)
Densities and viscosities of binary liquid mixtures of 1-ethyl-3-methylimidazolium tetrafluoroborate with acetone, methyl ethyl ketone, and N-methyl-2-pyrrolidone
Fan, Xian-Heng, Yan-Ping Chen, and Chie-Shaan Su.
Journal of the Taiwan Institute of Chemical Engineers, 61, 117-123 (2016)
The phase behaviour of 1-alkyl-3-methylimidazolium tetrafluoroborates; ionic liquids and ionic liquid crystals.
Holbrey JD and Seddon KR.
J. Chem. Soc., Dalton Trans., 13, 2133-2140 (1999)

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