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693294

Sigma-Aldrich

1,1,2,2-Tetrafluoroethanesulfonic acid

97%

Synonym(s):

TFESA

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About This Item

Linear Formula:
CHF2CF2SO3H
CAS Number:
464-14-2
Molecular Weight:
182.09
MDL number:
MFCD08458695
UNSPSC Code:
12352100
PubChem Substance ID:
329761580

assay

97%

refractive index

n20/D 1.354

bp

210-211 °C/760 mmHg

density

1.747 g/mL at 25 °C

SMILES string

OS(=O)(=O)C(F)(F)C(F)F

InChI

1S/C2H2F4O3S/c3-1(4)2(5,6)10(7,8)9/h1H,(H,7,8,9)

InChI key

KZWJWYFPLXRYIL-UHFFFAOYSA-N

Application

Alternative to triflic acid.

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Skin Corr. 1A

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

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Vsevolod V Rostovtsev et al.
The Journal of organic chemistry, 73(2), 711-714 (2007-12-19)
We have recently developed an improved synthetic route to 1,1,2,2-tetrafluoroethanesulfonic acid (HCF2CF2SO3H, TFESA) and explored the applications of this newly available superacid in catalysis. Low volatility, ease of handling, and a convenient 1H NMR handle make this acid an attractive

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