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175102

Sigma-Aldrich

Fluoroantimonic acid

purified by triple-distillation

Synonym(s):

Fluoroantimonic acid, Hexafluoroantimonic acid, Hexafluorostibonic acid, Monohydrogen hexafluoroantimonate

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About This Item

Linear Formula:
HF · SbF5
CAS Number:
16950-06-4
Molecular Weight:
236.76
EC Number:
241-023-8
MDL number:
MFCD00011327
UNSPSC Code:
12352302
PubChem Substance ID:
24850363
NACRES:
NA.23

vapor pressure

14 mmHg ( 18 °C)

Quality Level

100

form

liquid

purified by

triple-distillation

density

2.885 g/mL at 25 °C (lit.)

SMILES string

F.F[Sb](F)(F)(F)F

InChI

1S/6FH.Sb/h6*1H;/q;;;;;;+5/p-5

InChI key

MBAKFIZHTUAVJN-UHFFFAOYSA-I

General description

HF/SbF5 may be synthesized by mixing hydrogen fluoride and antimony fluoride.1 Fluoroantimonic acid (HF/SbF5), is a combination of SbF5 and HF. It is the known strongest liquid superacid.

Application

HF/SbF5 is an excellent medium for the preparation of alkylidene oxonium salts.

Packaging

Packaged in PFA/FEP bottles

Signal Word

Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1A

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV3494
MKCS8508
MKCT6563
MKCR8749
MKCQ2031

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Structure and vibrational spectra of H+ (HF) n (n= 2?9) clusters: An ab initio study.
Sophy KB and Kuo JL
J. Chem. Phys. , 131(22), 224307-224307 (2009)
Rolf Minkwitz et al.
Inorganic chemistry, 38(5), 844-847 (2001-10-24)
We have studied the preparation and isolation of the halogenated alkylidene oxonium salts CH(3)OCHX(+)MF(6)(-) (X = Cl, F; M = As, Sb). Addition of dichloromethylmethylether at -78 degrees C to the superacidic media HF/MF(5) resulted in the formation of the

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