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236535

Sigma-Aldrich

Fluorosulfonic acid

purified by triple-distillation

Synonym(s):

Fluosulfuric acid

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About This Item

Linear Formula:
FSO3H
CAS Number:
7789-21-1
Molecular Weight:
100.07
EC Number:
232-149-4
MDL number:
MFCD00066174
UNSPSC Code:
12352300
PubChem Substance ID:
24854177
NACRES:
NA.23

vapor density

3.5 (vs air)

Quality Level

100

vapor pressure

2.5 mmHg ( 25 °C)

purified by

triple-distillation

bp

165.5 °C (lit.)

mp

−87.3 °C (lit.)

density

1.726 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

OS(F)(=O)=O

InChI

1S/FHO3S/c1-5(2,3)4/h(H,2,3,4)

InChI key

UQSQSQZYBQSBJZ-UHFFFAOYSA-N

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Related Categories

Application

  • Polymerization of epoxidized triglycerides with fluorosulfonic acid: The article investigates the use of fluorosulfonic acid for the cationic polymerization of epoxidized triglycerides, exploring its potential in polymer chemistry (Biswas et al., 2016).

Packaging

Packaged in PFA/FEP bottles

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

hcodes

H314,H332

Hazard Classifications

Acute Tox. 4 Inhalation - Skin Corr. 1A

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Certificates of Analysis (COA)

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ATP sulfurylase from Penicillium chrysogenum is a noncooperative homooligomer containing three free sulfhydryl groups per subunit. Under nondenaturing conditions, one SH group per subunit was modified by 5,5'-dithiobis-(2-nitrobenzoate), or N-ethylmaleimide. Modification had only a small effect on kcat, but markedly
Roger L Snowden
Chemistry & biodiversity, 5(6), 958-969 (2008-07-12)
Using a novel, acid-mediated cyclization methodology, a direct access to Cetalox ((+/-)-1; a commercially important ambergris-type odorant) and various structurally related didehydro (i.e., 19, 26, and 30) and tetradehydro (i.e., 28 and 37/38) analogues is described. Treatment of either (E,E)-14
Leslie Dos Santos et al.
Membranes, 10(10) (2020-09-27)
Electrospinning was employed to fabricate composite membranes containing perfluorosulfonic acid (PFSA) ionomer, poly(vinylidene fluoride) (PVDF) reinforcement and a sulfonated silica network, where the latter was incorporated either in the PFSA matrix or in the PVDF fibers. The best membrane, in
Fumiaki Amano et al.
ChemSusChem, 12(9), 1925-1930 (2018-10-20)
Photoelectrochemical (PEC) water vapor splitting by using n-type semiconductor electrodes with a proton exchange membrane (PEM) enabled pure hydrogen production from humidity in ambient air. We proved a design concept that the gas-electrolyte-semiconductor triple-phase boundary on a nanostructured photoanode is
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