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Fluoroantimonic acid

Product Name
Fluoroantimonic acid
CAS No.
16950-06-4
Chemical Name
Fluoroantimonic acid
Synonyms
FLUOROANTIMONIC ACID;HEXAFLUOROANTIMONIC ACID;hexafluoroantimonyic acid;Hexafluoroantimonicacid6H2O;antimony,hydron,hexafluoride;HYDROGEN HEXAFLUOROANTIMONATE(V);Fluoroantimonic acid,65% in water;HEXAFLUOROANTIMONIC ACID, ANHYDROUS;Hexafluoroantimonicacidhexahydrate98%;FLUOROANTIMONIC ACID, TRIPLE-DISTILLED
CBNumber
CB6137791
Molecular Formula
F6HSb
Formula Weight
236.76
MOL File
16950-06-4.mol
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Fluoroantimonic acid Property

Melting point:
20°C
Density 
2.885 g/mL at 25 °C(lit.)
vapor pressure 
14 mm Hg ( 18 °C)
form 
liquid
color 
yellow to colorless
Water Solubility 
It is fully miscible with water, soluble in SO2ClF, SO2.
Exposure limits
ACGIH: TWA 0.5 mg/m3
NIOSH: IDLH 50 mg/m3; TWA 0.5 mg/m3
CAS DataBase Reference
16950-06-4(CAS DataBase Reference)
EPA Substance Registry System
Antimonate(1-), hexafluoro-, hydrogen, (OC-6-11)- (16950-06-4)
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Safety

Hazard Codes 
Xn,N,C,T+
Risk Statements 
20/22-51/53-35-26/27/28
Safety Statements 
61-45-36/37/39-28-26
RIDADR 
UN 2922 8/PG 2
WGK Germany 
2
Hazard Note 
Corrosive
TSCA 
Yes
HazardClass 
8
PackingGroup 
II
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H314Causes severe skin burns and eye damage

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
175102
Product name
Fluoroantimonic acid
Purity
purified by triple-distillation
Packaging
50g
Price
$338
Updated
2025/07/31
Strem Chemicals
Product number
93-5130
Product name
Hydrogen hexafluoroantimonate(V), 65-70% aqueous solution
Packaging
25g
Price
$100
Updated
2024/03/01
Strem Chemicals
Product number
93-5130
Product name
Hydrogen hexafluoroantimonate(V), 65-70% aqueous solution
Packaging
100g
Price
$294
Updated
2024/03/01
American Custom Chemicals Corporation
Product number
ING0004301
Product name
HEXAFLUOROANTIMONIC ACID
Purity
95.00%
Packaging
25G
Price
$526
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
ING0004301
Product name
HEXAFLUOROANTIMONIC ACID
Purity
95.00%
Packaging
50G
Price
$652
Updated
2021/12/16
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Fluoroantimonic acid Chemical Properties,Usage,Production

Chemical Properties

superacid; moisture sensitive [KIR78] [ALD94]
Strongest superacid known
mixture of HF and SbF5 (1:1 is strongest)
Protonate even hydrocarbons to afford carbocations and H2.
2×1019 (20 quintillion) times stronger than 100% sulfuric acid.
Ho values of -31.3

Uses

Fluoroantimonic acid is an excellent medium for the preparation of alkylidene oxonium salts.

Preparation

Fluoroantimonic acid is produced by reacting hydrogen fluoride (HF) with antimony pentafluoride (SbF5).
SbF5+HF→SbF6+HF

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.

References

[1] J. OLAH G. O. Synthetic Method and Reactions; V. 1 Fluoroantimonic Acid, a Convenient Superacid Catalyst for the Improved Isomerization of Tetrahydrodicyclopentadiene to Adamantane[J]. Synthesis-Stuttgart, 2002, 106 1: 488-488. DOI:10.1055/S-1973-22239.
[2] ZENGSHE LIU Atanu B. Fluoroantimonic acid hexahydrate (HSbF6·6H2O) catalysis: The ring-opening polymerization of epoxidized soybean oil[J]. Applied Catalysis A: General, 2013, 453: Pages 370-375. DOI:10.1016/j.apcata.2012.12.028.

Fluoroantimonic acid Preparation Products And Raw materials

Raw materials

Preparation Products

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Fluoroantimonic acid Suppliers

China 35 France 1 Germany 2 Switzerland 1 United Kingdom 3 United States 15 Global 57
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16950-06-4, Fluoroantimonic acidRelated Search:

NITRONIUM HEXAFLUOROANTIMONATE HEXAFLUOROANTIMONIC ACID Sodium hexafluoroantimonate Silver hexafluoroantimonate POTASSIUM HEXAFLUOROANTIMONATE LITHIUM HEXAFLUOROANTIMONATE NITROSONIUM HEXAFLUOROANTIMONATE TETRAPHENYLPHOSPHONIUM HEXAFLUOROANTIMONATE Antimony DIOXYGENYL HEXAFLUOROANTIMONATE 2-(TRIFLUOROMETHOXY)BIPHENYL-2'-DIAZONIUM HEXAFLUOROANTIMONATE fluorosulphuric acid, compound with antimony pentafluoride (4:1) CAESIUM HEXAFLUOROANTIMONATE BENZYLTRIMETHYLAMMONIUM HEXAFLUOROANTIMONATE HEXAFLUOROANTIMONIC ACID HEXAHYDRATE TRIPHENYLCARBENIUM HEXAFLUOROANTIMONATE TRIPHENYLSULFONIUM HEXAFLUOROANTIMONATE PHENYLOXOCARBENIUM(BENZOYL)HEXAFLUOROANTIMONATE

  • Fluoroantimonic acid purified by triple-distillation
  • hydrogen,(oc-6-11)-antimonate(1-hexafluoro-
  • HYDROGEN HEXAFLUOROANTIMONATE(V)
  • HEXAFLUOROANTIMONIC ACID
  • FLUOROANTIMONIC ACID
  • hexafluoroantimonyic acid
  • FLUOROANTIMONIC ACID, TRIPLE-DISTILLED
  • Hexafluoroantimonicacid6H2O
  • Hydrogenhexafluoroantimonate(V),65-70%aqueoussolution
  • Hexafluoroantimonic acid hexahydrate 98%
  • Hexafluoroantimonicacidhexahydrate98%
  • Hydrogen hexafluoroantimonate(V), ≈65% aq. soln.
  • HEXAFLUOROANTIMONIC ACID, ANHYDROUS
  • antimony,hydron,hexafluoride
  • Fluoroantimonic acid,65% in water
  • Hydrogen Hexafluoroantimonate(V) aq. Soln.
  • 16950-06-4
  • HSbF6
  • HFSbF5
  • F6HSb
  • HF6Sb
  • F6SbH6H2O
  • F5SbHF
  • organoantimony compound
  • Acids
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  • Micro/Nanoelectronics