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Fluorosulfuric acid information


Fluorosulfuric acid
Skeletal formula of fluorosulfuric acid
Skeletal formula of fluorosulfuric acid
Spacefill model of fluorosulfuric acid
Spacefill model of fluorosulfuric acid
Names
IUPAC name
Sulfurofluoridic acid
Systematic IUPAC name
Fluorosulfuric acid[citation needed]
Other names
Fluorosulfonic acid,
Fluorosulphonic acid,
Fluorinesulfonic acid,
Fluorinesulphonic acid,
Fluoridosulfonic acid,
Fluoridosulphonic acid,
Sulfuric fluorohydrin,
Epoxysulfonyl fluoride
Identifiers
CAS Number
  • 7789-21-1 checkY
3D model (JSmol)
  • Interactive image
  • Interactive image
ChemSpider
  • 23005 checkY
ECHA InfoCard 100.029.227 Edit this at Wikidata
EC Number
  • 232-149-4
MeSH Fluorosulfonic+acid
PubChem CID
  • 24603
RTECS number
  • LP0715000
UNII
  • PPX0648643 checkY
UN number 1777
CompTox Dashboard (EPA)
  • DTXSID3033511 Edit this at Wikidata
InChI
  • InChI=1S/FHO3S/c1-5(2,3)4/h(H,2,3,4) checkY
    Key: UQSQSQZYBQSBJZ-UHFFFAOYSA-N checkY
  • InChI=1/FHO3S/c1-5(2,3)4/h(H,2,3,4)
    Key: UQSQSQZYBQSBJZ-UHFFFAOYAW
SMILES
  • OS(F)(=O)=O
  • FS(=O)(=O)O
Properties
Chemical formula
FHO3S
Molar mass 100.06 g·mol−1
Appearance Colorless liquid
Density 1.726 g cm−3
Melting point −87.5 °C; −125.4 °F; 185.7 K
Boiling point 165.4 °C; 329.6 °F; 438.5 K
Acidity (pKa) -10
Conjugate base Fluorosulfate
Structure
Coordination geometry
Tetragonal at S
Molecular shape
Tetrahedral at S
Hazards
GHS labelling:
Pictograms
GHS07: Exclamation markGHS05: Corrosive
Signal word
Danger
Hazard statements
H314, H332[1]
Precautionary statements
P261, P271, P280, P303+P361+P353, P304+P340+P310, P305+P351+P338[1]
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 4: Very short exposure could cause death or major residual injury. E.g. VX gasFlammability 0: Will not burn. E.g. waterInstability 3: Capable of detonation or explosive decomposition but requires a strong initiating source, must be heated under confinement before initiation, reacts explosively with water, or will detonate if severely shocked. E.g. hydrogen peroxideSpecial hazard W+OX: Reacts with water in an unusual or dangerous manner AND is oxidizer
4
0
3
W
OX
Safety data sheet (SDS) ICSC 0996
Related compounds
Related compounds
Antimony pentafluoride
Trifluoromethanesulfonic acid
Hydrofluoric acid
Sulfurous acid
Sulfuric acid
Sulfur hexafluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)
Infobox references

Fluorosulfuric acid (IUPAC name: sulfurofluoridic acid) is the inorganic compound with the chemical formula HSO3F. It is one of the strongest acids commercially available. It is a tetrahedral molecule and is closely related to sulfuric acid, H2SO4, substituting a fluorine atom for one of the hydroxyl groups. It is a colourless liquid, although commercial samples are often yellow.[2]

  1. ^ a b Sigma-Aldrich Co., Fluorosulfonic acid. Retrieved on 2024-01-27.
  2. ^ Erhardt Tabel, Eberhard Zirngiebl, Joachim Maas "Fluorosulfuric Acid" in "Ullmann's Encyclopedia of Industrial Chemistry" 2005, Wiley-VCH, Weinheim. doi:10.1002/14356007.a11_431

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Fluorosulfuric acid

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Fluorosulfuric acid (IUPAC name: sulfurofluoridic acid) is the inorganic compound with the chemical formula HSO3F. It is one of the strongest acids commercially...

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Fluoroantimonic acid

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> H0 > −28) Magic acid (H0 = −23) Carborane acid (H0 < −18) Fluorosulfuric acid (H0 = −15) Triflic acid (H0 = −15) Perchloric acid (H0 = −13) Of the above...

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Superacid

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sulfuric acid. Commercially available superacids include trifluoromethanesulfonic acid (CF3SO3H), also known as triflic acid, and fluorosulfuric acid (HSO3F)...

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Magic acid

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Magic acid (FSO3H·SbF5) is a superacid consisting of a mixture, most commonly in a 1:1 molar ratio, of fluorosulfuric acid (HSO3F) and antimony pentafluoride...

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Acid strength

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{H[CHB11Cl11]}}} Fluorosulfuric acid H [ FSO 3 ] {\displaystyle {\ce {H[FSO3]}}} ( p K a {\displaystyle \mathrm {p} K_{{\ce {a}}}} = −6.4) Sulfonic acids, such as...

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Strong electrolyte

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Magic acid, FSO3HSbF5 Carborane superacid, H(CHB11Cl11) Fluorosulfuric acid, FSO3H Triflic acid, CF3SO3H Strong bases Lithium hydroxide, LiOH Sodium hydroxide...

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Acid

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Sulfuric acid (H2SO4) Fluorosulfuric acid (HSO3F) Nitric acid (HNO3) Phosphoric acid (H3PO4) Fluoroantimonic acid (HSbF6) Fluoroboric acid (HBF4) Hexafluorophosphoric...

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Triflic acid

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problem with sulfuric acid, fluorosulfuric acid, and chlorosulfonic acid. Below is a prototypical sulfonation, which triflic acid does not undergo: C 6...

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Carbenium ion

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anion, H− , with a strong acid. For example, magic acid, a mixture of antimony pentafluoride (SbF 5) and fluorosulfuric acid (FSO 3H), turns isobutane...

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Fluoroboric acid

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trifluoro(hydroxy)borate) H+[BF4]− (hydrogen tetrafluoroborate) Fluorosulfuric acid Fluoroantimonic acid IUPAC. "Nomenclature of Inorganic Chemistry". Retrieved...

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Sulfur oxoacid

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of (−S−)n Chlorosulfuric acid Fluorosulfuric acid Nitrosylsulfuric acid Peroxydisulfuric acid Sulfinic acids Sulfonic acids Raman spectroscopic discovery...

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Selenic acid

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salts. Treatment with fluorosulfuric acid gives selenoyl fluoride: H2SeO4 + 2 HSO3F → SeO2F2 + 2 H2SO4 Hot, concentrated selenic acid reacts with gold, forming...

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Electrophile

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nitronium tetrafluoroborate NO+ 2BF− 4 only in presence of a strong acid like fluorosulfuric acid via the protonated nitronium dication. In gitionic (gitonic)...

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Sulfur trioxide

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carbohydrates. Akin to the behavior of H2O, hydrogen fluoride adds to give fluorosulfuric acid: SO3 + HF → FSO3H SO3 reacts with dinitrogen pentoxide to give the...

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Dewar benzene

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"Protonation of hexamethyl Dewar benzene and hexamethylprismane in fluorosulfuric acid – antimony pentafluoride – sulfur dioxide". J. Am. Chem. Soc. 90...

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Fluorosulfates

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The fluorosulfates or fluorosulfonates are a set of salts of fluorosulfuric acid with an ion formula SO3F−. The fluorosulfate anion can be treated as...

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Iodine

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antibonding orbital, making the bond stronger and hence shorter. In fluorosulfuric acid solution, deep-blue I+ 2 reversibly dimerises below −60 °C, forming...

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Hammett acidity function

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0 Fluorosulfuric acid (1944): −15.1 Hydrogen fluoride: −15.1 Trifluoromethanesulfonic acid (1940): −14.9 Perchloric acid: −13 Sulfurochloridic acid: −13...

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Iodine compounds

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antibonding orbital, making the bond stronger and hence shorter. In fluorosulfuric acid solution, deep-blue I+ 2 reversibly dimerises below −60 °C, forming...

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Manganese trioxide fluoride

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purified and crystallized much more recently. It can be prepared by fluorosulfuric acid and potassium permanganate: KMnO4 + 2HF → MnO3F + KF + H2O MnO3F...

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List of chemical compounds with unusual names

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2013. Retrieved 4 November 2013. Chester, DO (1979). "Three New Aliphatic Acids from Lichens of Genus Parmelia (Subgenus Xanthoparmelia )". Australian Journal...

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Difluorophosphate

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another way is to treat orthophosphate (PO3−4) with fluorosulfuric acid (HSO3F). Difluorphosphoric acid is a colorless liquid. It melts at −96.5 °C (−141...

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Perchloryl fluoride

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2 SbF− 6 Alternatively, potassium perchlorate reacts with excess fluorosulfuric acid to give potassium bisulfate and perchloryl fluoride: KClO4 + HFSO3 →...

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Metalloid

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acid to yield the trihydroxotellurium(IV) Te(OH)3+ ion; the red Te42+ and yellow-orange Te62+ ions form when tellurium is oxidized in fluorosulfuric acid...

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Chloryl

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(ClO 2) 2(S 3O 10). These chloryl compounds form red solutions in fluorosulfuric acid, and do contain a red-colored ClO+ 2 cation which dissociates in...

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Potential applications of carbon nanotubes

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commercialization. Carbon nanotubes can be dissolved in superacids such as fluorosulfuric acid and drawn into fibers in dry jet-wet spinning. DWNT-polymer composite...

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Hexamethylbenzene

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"Protonation of hexamethyl Dewar benzene and hexamethylprismane in fluorosulfuric acid – antimony pentafluoride – sulfur dioxide". J. Am. Chem. Soc. 90...

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