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Hydrogen Hexafluoroantimonate(V) Solution
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Hydrogen Hexafluoroantimonate(V) Properties (Theoretical)

Compound Formula F6HSb
Molecular Weight 236.76
Appearance Colorless to yellow liquid
Melting Point N/A
Boiling Point N/A
Density 2.885 g/mL (25 °C)
Solubility in H2O N/A
Exact Mass 235.902 g/mol
Monoisotopic Mass 235.902 g/mol

Hydrogen Hexafluoroantimonate(V) Health & Safety Information

Signal Word Danger
Hazard Statements H300 + H310 + H330-H314-H411
Hazard Codes C, Xn, N
Precautionary Statements P260-P280-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338
Risk Codes R34 R20/22 R51/53
RTECS Number N/A
Transport Information UN2922 8/PG II
WGK Germany 2
GHS Pictograms

About Hydrogen Hexafluoroantimonate(V)

Hydrogen Hexafluoroantimonate(V) (or Fluoroantimonic acid) is a mixture of antimony pentafluoride (SbF5) and hydrogen fluoride that is known to be the strongest liquid superacid. Hydrogen Hexafluoroantimonate(V) is generally immediately available in most volumes. American Elements manufactures materials to many standard grades when applicable including Mil Spec (military grade), ACS, Reagent and Technical Grades; Food, Agricultural and Pharmaceutical Grades, Optical, Semiconductor, and Electronics Grades, and follows applicable USP, EP/BP, and ASTM testing standards. Most materials can be produced in high and ultra high purity forms (99%, 99.9%, 99.99%, 99.999%, and higher). Standard and custom packaging is available. Additional technical, research and safety (SDS) information is available. Please request a quote above to receive pricing information based on your specifications.

Hydrogen Hexafluoroantimonate(V) Synonyms

Fluoroantimonic acid, Hexafluoroantimonic acid, Hexafluoroantimonyic acid, Fluoranium hexafluorostibanuide, Fluoranium hexafluoridoantimonate(1−), Hydrogen hexafluoroantimonate aqueous solution, Antimonate(1-), hexafluoro-, hydrogen (1:1), (OC-6-11)-, CAS 76543-23-2, 40718-46-5, H2FSbF6

Chemical Identifiers

Linear Formula HF•SbF5
MDL Number MFCD00011327
EC No. 241-023-8
Pubchem CID 91867660
IUPAC Name antimony(5+); hydron; hexafluoride
SMILES [H+].[F-].[F-].[F-].[F-].[F-].[F-].[Sb+5]
InchI Identifier InChI=1S/6FH.Sb/h6*1H;/q;;;;;;+5/p-5

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements


See more Antimony products. Antimony (atomic symbol: Sb, atomic number: 51) is a Block P, Group 15, Period 5 element with an atomic radius of 121.760. Antimony Bohr Model The number of electrons in each of antimony's shells is 2, 8, 18, 18, 5 and its electron configuration is [Kr] 4d10 5s2 5p3. The antimony atom has a radius of 140 pm and a Van der Waals radius of 206 pm. Antimony was discovered around 3000 BC and first isolated by Vannoccio Biringuccio in 1540 AD. In its elemental form, antimony has a silvery lustrous gray appearance. Elemental Antimony The most common source of antimony is the sulfide mineral known as stibnite (Sb2S3), although it sometimes occurs natively as well. Antimony has numerous applications, most commonly in flame-retardant materials. It also increases the hardness and strength of lead when combined in an alloy and is frequently employed as a dopant in semiconductor materials. Its name is derived from the Greek words anti and monos, meaning a metal not found by itself.


Fluorine is a Block P, Group 17, Period 2 element. Its electron configuration is [He]2s22p5. The fluorine atom has a covalent radius of 64 pm and its Van der Waals radius is 135 pm. In its elemental form, CAS 7782-41-4, fluorine gas has a pale yellow appearance. Fluorine was discovered by André-Marie Ampère in 1810. It was first isolated by Henri Moissan in 1886.


August 15, 2022
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