Lithium hexafluoroarsenate is an inorganic chemical compound with the chemical formula LiAsF6.[1][2][3]
| Names | |
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| IUPAC name
lithium;hexafluoroarsenic(1-)
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| Other names
Hexafluoroarsenate(V) lithium
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.045.406 |
| EC Number |
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| AsF6Li | |
| Molar mass | 195.85 g·mol−1 |
| Appearance | powder |
| Density | g/cm3 |
| Melting point | 349 |
| soluble | |
| Hazards | |
| GHS labelling: | |
 
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| Danger | |
| H301, H331, H410 | |
| P261, P264, P271, P273, P301, P304, P310, P311, P340 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Synthesis
editReaction of arsenic pentafluoride and lithium fluoride in liquid hydrogen fluoride:
- LiF + AsF5 → LiAsF6
Physical properties
editLithium hexafluoroarsenate forms crystals. It is well-soluble both in water and organic solvents.[4][5] It forms a crystallohydrate of the composition Li[AsF6]•H2O. Its crystals are of rhombic system.[6]
Chemical properties
editStrong 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
editLithium hexafluoroarsenate can be used in the fabrication of lithium-ion batteries.[7][8]
References
edit- ^ "Lithium Hexafluoroarsenate(V)". American Elements. Retrieved 27 June 2024.
- ^ "Lithium hexafluoroarsenate(V) | CAS 29935-35-1 | SCBT - Santa Cruz Biotechnology". Santa Cruz Biotechnology. Retrieved 27 June 2024.
- ^ Tyunina, Elena Yu.; Chekunova, Marina D. (1 November 2013). "Electrochemical properties of lithium hexafluoroarsenate in methyl acetate at various temperatures". Journal of Molecular Liquids. 187: 332–336. doi:10.1016/j.molliq.2013.08.019. ISSN 0167-7322. Retrieved 27 June 2024.
- ^ Aifantis, Katerina E.; Kumar, R. V.; Hu, Pu (15 November 2022). Rechargeable Ion Batteries: Materials, Design, and Applications of Li-Ion Cells and Beyond. John Wiley & Sons. p. 194. ISBN 978-3-527-35018-6. Retrieved 27 June 2024.
- ^ Energy Research Abstracts. Technical Information Center, U.S. Department of Energy. 1982. p. 98. Retrieved 27 June 2024.
- ^ Haynes, William M. (9 June 2015). CRC Handbook of Chemistry and Physics, 96th Edition. CRC Press. p. 4-72. ISBN 978-1-4822-6097-7. Retrieved 27 June 2024.
- ^ "Lithium hexafluoroarsenate(V)". Sigma Aldrich. Retrieved 27 June 2024.
- ^ Srinivasan, Supramaniam (31 December 2006). Fuel Cells: From Fundamentals to Applications. Springer Science & Business Media. p. 165. ISBN 978-0-387-35402-6. Retrieved 27 June 2024.