lithium hexafluoroarsenate
{{Chembox
| Name = Lithium hexafluoroarsenate
| ImageFile =
| ImageSize =
| ImageAlt =
| IUPACName = lithium;hexafluoroarsenic(1-)
| OtherNames = Hexafluoroarsenate(V) lithium
| Section1 = {{Chembox Identifiers
| CASNo = 29935-35-1
| CASNo_Ref = {{Cascite|correct|CAS}}
| ChemSpiderID = 8012757
| UNII =
| DTXSID = DTXSID50885465
| EINECS = 249-963-0
| PubChem = 9837036
| StdInChI = 1S/AsF6.Li/c2-1(3,4,5,6)7;/q-1;+1
| StdInChIKey = GTZQZEYBOGZTEO-UHFFFAOYSA-N
| SMILES = [Li+].F[As-](F)(F)(F)(F)F
}}
| Section2 = {{Chembox Properties
| Li=1|As=1|F=6
| MolarMass =
| Appearance = powder
| Density = g/cm3
| MeltingPt = 349
| BoilingPt =
| Solubility = soluble
}}
| Section3 = {{Chembox Hazards
| GHSPictograms = {{GHS06}}{{GHS09}}
| GHSSignalWord = Danger
| GHS_ref =
| HPhrases = {{H-phrases|301|331|410}}
| PPhrases = {{P-phrases|261|264|271|273|301|310|304|340|311}}
| MainHazards =
| FlashPt =
| AutoignitionPt =
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Lithium hexafluoroarsenate is an inorganic chemical compound with the chemical formula {{chem2|LiAsF6}}.{{cite web |title=Lithium Hexafluoroarsenate(V) |url=https://www.americanelements.com/lithium-hexafluoroarsenate-v-29935-35-1 |publisher=American Elements |access-date=27 June 2024 |language=en}}{{cite web |title=Lithium hexafluoroarsenate(V) {{!}} CAS 29935-35-1 {{!}} SCBT - Santa Cruz Biotechnology |url=https://www.scbt.com/p/lithium-hexafluoroarsenate-v-29935-35-1 |publisher=Santa Cruz Biotechnology |access-date=27 June 2024 |language=en}}{{cite journal |last1=Tyunina |first1=Elena Yu. |last2=Chekunova |first2=Marina D. |title=Electrochemical properties of lithium hexafluoroarsenate in methyl acetate at various temperatures |journal=Journal of Molecular Liquids |date=1 November 2013 |volume=187 |pages=332–336 |doi=10.1016/j.molliq.2013.08.019 |url=https://www.sciencedirect.com/science/article/abs/pii/S0167732213002821 |access-date=27 June 2024 |issn=0167-7322|url-access=subscription }}
Synthesis
Reaction of arsenic pentafluoride and lithium fluoride in liquid hydrogen fluoride:
::{{chem2| LiF + AsF5 -> LiAsF6}}
Physical properties
Lithium hexafluoroarsenate forms crystals. It is well-soluble both in water and organic solvents.{{cite book |last1=Aifantis |first1=Katerina E. |last2=Kumar |first2=R. V. |last3=Hu |first3=Pu |title=Rechargeable Ion Batteries: Materials, Design, and Applications of Li-Ion Cells and Beyond |date=15 November 2022 |publisher=John Wiley & Sons |isbn=978-3-527-35018-6 |page=194 |url=https://books.google.com/books?id=uLiYEAAAQBAJ&dq=lithium+hexafluoroarsenate&pg=PA194 |access-date=27 June 2024 |language=en}}{{cite book |title=Energy Research Abstracts |date=1982 |publisher=Technical Information Center, U.S. Department of Energy |page=98 |url=https://books.google.com/books?id=CHTRigvKKeUC&dq=lithium+hexafluoroarsenate&pg=PA98 |access-date=27 June 2024 |language=en}} It forms a crystallohydrate of the composition Li[AsF6]•H2O. Its crystals are of rhombic system.{{cite book |last1=Haynes |first1=William M. |title=CRC Handbook of Chemistry and Physics, 96th Edition |date=9 June 2015 |publisher=CRC Press |isbn=978-1-4822-6097-7 |page=4-72 |url=https://books.google.com/books?id=RpLYCQAAQBAJ&dq=lithium+hexafluoroarsenate&pg=SA4-PA72 |access-date=27 June 2024 |language=en}}
Chemical properties
Strong oxidizing and reducing agents as well as strong acids and bases cause violent reactions with lithium hexafluoroarsenate. The decomposition produces hydrogen fluoride, arsenic oxides, and lithium oxide.
Uses
Lithium hexafluoroarsenate can be used in the fabrication of lithium-ion batteries.{{cite web |title=Lithium hexafluoroarsenate(V) |url=https://www.sigmaaldrich.com/RU/en/product/aldrich/308315 |publisher=Sigma Aldrich |access-date=27 June 2024}}{{cite book |last1=Srinivasan |first1=Supramaniam |title=Fuel Cells: From Fundamentals to Applications |date=31 December 2006 |publisher=Springer Science & Business Media |isbn=978-0-387-35402-6 |page=165 |url=https://books.google.com/books?id=Bj-znLsKxyoC&dq=lithium+hexafluoroarsenate&pg=PA165 |access-date=27 June 2024 |language=en}}
References
{{lithium compounds}}
{{fluorine compounds}}