| Revision as of 11:20, 12 May 2011 editCheMoBot (talk | contribs)Bots141,565 edits Updating {{chembox}} (no changed fields - added verified revid - updated 'UNII_Ref', 'ChemSpiderID_Ref', 'StdInChI_Ref', 'StdInChIKey_Ref', 'ChEMBL_Ref', 'KEGG_Ref') per Chem/Drugbox validation (← Previous edit |
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{{chembox |
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{{chembox |
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| verifiedrevid = 411216282 |
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| Watchedfields = changed |
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| ImageFile = |
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| verifiedrevid = 428735313 |
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| Reference = <ref name="hand"> |
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| Reference = <ref name="hand"> |
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{{Cite book |
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{{Cite book |
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| last = Lide |
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| last = Lide |
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| first = David R. |
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| first = David R. |
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| author-link = |
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| year = 1998 |
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| title = Handbook of Chemistry and Physics |
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| last2 = |
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| first2 = |
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| edition = 87 |
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| location = Boca Raton, FL |
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| author2-link = |
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| publisher = CRC Press |
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| publication-date = |
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| isbn = 0-8493-0594-2 |
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| date = |
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| year = 1998 |
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| pages = 4–74 |
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| title = Handbook of Chemistry and Physics |
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| edition = 87 |
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| volume = |
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| series = |
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| publication-place = Boca Raton, FL |
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| place = |
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| publisher = CRC Press |
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| id = |
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| isbn = 0849305942 |
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| doi = |
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| oclc = |
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| pages = 4–74 |
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| url = |
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| accessdate = |
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| postscript = <!--None--> |
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}}</ref> |
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}}</ref> |
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| ImageFile = Hexafluorophosphoric acid.svg |
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| ImageSize = |
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| ImageFileL1 = Hydronium-3D-vdW.svg |
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| ImageName = |
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| ImageFileR1 = Hexafluorophosphate-anion-3D-vdW.png |
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| IUPACName = Hydrogen hexafluorophosphate |
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| IUPACName = Hexafluorophosphoric acid<ref>{{cite web|url=https://moam.info/nomenclature-of-inorganic-chemistry-iupac_59c16afb1723ddd2fb171db1.html|title=Nomenclature of Inorganic Chemistry|last=]|access-date=2021-04-08}}</ref> |
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| OtherNames = Hexafluorophosphoric acid |
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| OtherNames = Hydrogen hexafluorophosphate<br>Hydron hexafluorophosphate |
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| Section1 = {{Chembox Identifiers |
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| Section1 = {{Chembox Identifiers |
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| SMILES = F(F)(F)(F)(F)F |
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| EINECS = 241-006-5 |
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| PubChem = 16211447 |
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| ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}} |
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| CASNo = 16940-81-1 |
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| ChemSpiderID = 17339451 |
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| RTECS = |
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| SMILES = .F(F)(F)(F)(F)F |
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}} |
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| InChI = 1/F6P/c1-7(2,3,4,5)6/q-1/p+1 |
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| Section2 = {{Chembox Properties |
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| InChIKey = LJQLCJWAZJINEB-IKLDFBCSAL |
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| Formula = HPF<sub>6</sub> |
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| StdInChI_Ref = {{stdinchicite|changed|chemspider}} |
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| MolarMass = 145.972 g/mol |
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| StdInChI = 1S/F6P/c1-7(2,3,4,5)6/q-1/p+1 |
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| Appearance = colorless oily liquid |
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| StdInChIKey_Ref = {{stdinchicite|changed|chemspider}} |
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| Density = |
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| StdInChIKey = LJQLCJWAZJINEB-UHFFFAOYSA-O |
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| Solubility = reacts |
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| EINECS = 241-006-5 |
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| MeltingPt = decomposes at 25°C |
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| CASNo_Ref = {{cascite|correct|??}} |
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| BoilingPt = |
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| pKa = |
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| CASNo = 16940-81-1 |
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}} |
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| pKb = |
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| Section2 = {{Chembox Properties |
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| Viscosity = |
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| Formula = HPF<sub>6</sub> |
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}} |
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| MolarMass = 145.972 g/mol |
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| Section3 = {{Chembox Structure |
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| Appearance = colorless oily liquid |
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| MolShape = |
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| Solubility = exists only in solution |
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| Coordination = |
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| MeltingPt = decomposes at 25 °C |
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| CrystalStruct = |
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}} |
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| Dipole = |
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| Section7 = {{Chembox Hazards |
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}} |
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| MainHazards = Corrosive |
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| Section7 = {{Chembox Hazards |
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| GHSPictograms = {{GHS05}}{{GHS06}} |
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| ExternalMSDS = |
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| MainHazards = |
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| GHSSignalWord = Danger |
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| HPhrases = {{H-phrases|301|311|314|330}} |
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| FlashPt = |
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| PPhrases = {{P-phrases|260|264|271|280|284|301+330+331|303+361+353|304+340|305+351+338|310|320|321|363|403+233|405|501}} |
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| RPhrases = |
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}} |
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| SPhrases = |
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}} |
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| Section8 = {{Chembox Related |
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| OtherAnions = |
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| OtherCations = |
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| OtherCpds = |
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}} |
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}} |
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}} |
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'''Hexafluorophosphoric acid''' refers to a family of ]s produced by combining ] and ]. The idealized ] for hexafluorophosphoric acid |
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'''Hexafluorophosphoric acid''' is the ] with the ] HPF<sub>6</sub>. This strong ] features a ], ] ({{chem|PF|6|-}}). It is formed from the reaction of ] with ].<ref>{{cite book |
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is {{chem2|HPF6}}, which also is written {{chem2|H6}}.<ref>{{cite book |
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| title = Superacid Chemistry |
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| title = Superacid Chemistry |
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| author = Arpad Molnar |
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| author = Arpad Molnar |
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| publisher = Wiley-Interscience |
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| publisher = Wiley-Interscience |
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| year = 2009 |
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| year = 2009 |
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| isbn = 047159668X |
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| isbn = 978-0-471-59668-4 |
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| page = 44 |
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| page = 44 |
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}}</ref> Hexafluorophosphoric acid is only stable in solution, decomposing to HF and PF<sub>5</sub> when dry.<ref>{{Kirk-Othmer|doi=10.1002/0471238961.1608151912091404.a01|title=Fluorine compounds, inorganic, phosphorus|first1=Charles B.|last1=Lindahl|first2=Tariq|last2=Mahmood|year=2000}}</ref> It exothermically reacts with water to produce oxonium hexafluorophosphate ({{chem2|H3OPF6}}) and hydrofluoric acid. Additionally, such solutions often contain products derived from hydrolysis of the P-F bonds, including {{chem|HPO|2|F|2}}, {{chem|H|2|PO|2|F}}, and {{chem|H|3|PO|4}}, and their conjugate bases.<ref name="davidson">{{cite journal |
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}}</ref> |
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Like many strong acids, hexafluorophosphoric acid is not isolable but is handled only in solution. Its aqueous solutions consist of hydronium ion, {{chem|H|3|O|+}}, and {{chem|PF|6|-}}. Additionally such solutions contain products derived from hydrolysis of the P-F bonds, including {{chem|HPO|2|F|2}}, {{chem|H|2|PO|2|F}}, and {{chem|H|3|PO|4}}, and their conjugate bases.<ref name="davidson">{{cite journal |
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| doi = 10.1139/v72-565 |
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| doi = 10.1139/v72-565 |
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| author = D. W. Davidson |
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| author = D. W. Davidson |
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| author2 = S. K. Garg |
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| author2 = S. K. Garg |
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| journal = Canadian Journal of Chemistry |
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| journal = Canadian Journal of Chemistry |
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| year = 1972 |
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| date=May 1972 |
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| month = May |
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| title = The Hydrate of Hexafluorophosphoric Acid |
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| title = The Hydrate of Hexafluorophosphoric Acid |
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| volume = 50 |
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| volume = 50 |
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| issue = 21 |
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| pages = 3515–3520 |
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| pages = 3515–3520 |
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| doi-access = free |
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}}</ref> |
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}}</ref> Hexafluorophosphoric acid attacks glass. Upon heating, it decomposes to generate HF. Crystalline {{chem|HPF|6}} has been obtained as the hexahydrate, wherein {{chem|PF|6|-}} is enclosed in ] cages defined by the water and protons. ] indicates that solutions derived from this hexahydrate contain significant amounts of HF.<ref name="davidson" /> |
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Whereas a species with the formula HPF<sub>6</sub> remains unknown, the analogous molecular ] (HAsF<sub>6</sub>) has been crystallized.<ref>{{cite journal |doi=10.1002/anie.201308023 |title=The Existence of Hexafluoroarsenic(V) Acid |year=2014 |last1=Axhausen |first1=Joachim |last2=Lux |first2=Karin |last3=Kornath |first3=Andreas |journal=Angewandte Chemie International Edition |volume=53 |issue=14 |pages=3720–3721 |pmid=24446235 }}</ref> |
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"Crystalline {{chem|HPF|6}}" has been obtained as the hexahydrate, wherein {{chem|PF|6|-}} is enclosed in ] cages defined by the water and protons. ] indicates that solutions derived this hexahydrate contain significant amounts of HF.<ref name="davidson" /> |
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==See also== |
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* ] |
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==References== |
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==References== |
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{{reflist}} |
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{{reflist}} |
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{{fluorine compounds}} |
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{{Hexafluorophosphates}} |
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] |
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] |
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] |
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] |
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{{inorganic-compound-stub}} |
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] |
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] |
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] |
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