Teflic acid

Quality 0.50 · 1 view · Updated 2 months ago

title: "Teflic acid" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["oxyfluorides", "tellurium(vi)-compounds", "substances-discovered-in-the-1960s"] topic_path: "general/oxyfluorides" source: "https://en.wikipedia.org/wiki/Teflic_acid" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

| Watchedfields = changed | verifiedrevid = 470481620 | ImageFileL1 = Teflic_acid_2D_full.svg | ImageSizeL1 = 120 | ImageAltL1 = Structural formula | ImageFileR1 = Teflic-acid-3D-spacefill.png | ImageSizeR1 = 120 | ImageNameR1 = Space-filling model | IUPACName = Pentafluoroorthotelluric acid | OtherNames = Teflic acid |Section1={{Chembox Identifiers | ChemSpiderID_Ref = | ChemSpiderID = 10331773 | InChI = 1/F5HOTe/c1-7(2,3,4,5)6/h6H | InChIKey = OAOSLENTGBMCNC-UHFFFAOYAO | StdInChI_Ref = | StdInChI = 1S/F5HOTe/c1-7(2,3,4,5)6/h6H | StdInChIKey_Ref = | StdInChIKey = OAOSLENTGBMCNC-UHFFFAOYSA-N | CASNo_Ref = | CASNo = 57458-27-2 | PubChem = 15243876 | SMILES = FTe(F)(F)(F)O |Section2={{Chembox Properties | Formula = | H=1|O=1|Te=1|F=5 | Appearance = colorless solid | pKa = 8.8 (in Ac2O) | MeltingPtC = 39.1 | BoilingPtC = 59.7 | Solubility = |Section3={{Chembox Hazards | GHSPictograms = | GHSSignalWord = Danger | HPhrases = | PPhrases = | MainHazards = corrosive, toxic | FlashPt = | AutoignitionPt = Teflic acid is a chemical compound with the formula . This strong acid is related to orthotelluric acid, . Teflic acid has a slightly distorted octahedral molecular geometry.

Preparation

Teflic acid was accidentally discovered by Engelbrecht and Sladky. Their synthesis did not yield the anticipated telluryl fluoride , but a mixture of volatile telluric compounds, containing : : (25%)

Teflic acid can also be prepared from fluorosulfonic acid and barium tellurate: :

It is also the first hydrolysis product of tellurium hexafluoride: :

Teflates

::figure[src="https://upload.wikimedia.org/wikipedia/commons/7/75/Boron-teflate-3D-balls.png" caption="Boron teflate"] ::

The conjugate base of teflic acid is called the teflate anion, (not to be confused with triflate). Many teflates are known, one example being , that can be pyrolysed to give acid anhydride . :

The teflate anion is known to resist oxidation. This property has allowed the preparation several highly unusual species such as the hexateflates (in which M = As, Sb, Bi). Xenon forms the cation .

References

References

  1. (1982). "Ionisation Constants of Inorganic Acids and Bases in Aqueous Solution". Pergamon.
  2. Engelbrecht, A.; Sladky, F. "Pentafluoro-orthotellursaure, {{chem2. HOTeF5" ''Angewandte Chemie'' '''1964'''. ''76''('''9'''), 379-380, {{doi. 10.1002/ange.19640760912.
  3. Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. {{ISBN. 0-12-352651-5.
  4. Mercier, H. P.A.; Sanders, J. C. P.; Schrobilgen, G. J. "The Hexakis(pentafluorooxotellurato)pnictate(V) Anions, {{chem2. 10.1021/ja00086a025.

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::

oxyfluoridestellurium(vi)-compoundssubstances-discovered-in-the-1960s