Lithium hexafluorophosphate
| Lithium hexafluorophosphate | |
|---|---|
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| IUPAC name lithium hexafluorophosphate | |
| Identifiers | |
| CAS number | 21324-40-3  |
| PubChem | 23688915 |
| ChemSpider | 146939 |
| Jmol-3D images | {{#if:[Li+].F[P-](F)(F)(F)(F)F|Image 1 |
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| Properties | |
| Molecular formula | LiPF6 |
| Molar mass | 151.905 g/mol |
| Appearance | white powder |
| Density | 1.5 g/cm3 |
| Melting point | 200 °C |
| Solubility in water | soluble |
| Hazards | |
| MSDS | External MSDS |
| GHS pictograms |  |
| GHS signal word | DANGER |
| GHS hazard statements | H314 |
| GHS precautionary statements | P280, P310, P305+351+338 |
| EU Index | Not listed |
| R-phrases | R22, R24, R34 |
| S-phrases | S26, S36, S37, S39, S45 |
| Flash point | Non-flammable |
| Related compounds | |
| Other anions | Lithium tetrafluoroborate |
| Other cations | Sodium hexafluorophosphate Potassium hexafluorophosphate Ammonium hexafluorophosphate |
(verify) (what is: / ?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | |
| Infobox references | |
Lithium hexafluorophosphate is an inorganic compound with the formula LiPF6 that is commonly used salt in commercial lithium batteries. This white crystalline powder is used in commercial secondary batteries, an application that exploits its high solubility in nonpolar solvents. Specifically, solutions of lithium hexafluorophosphate in propylene carbonate with dimethoxyethane serves as an electrolyte in lithium batteries.[1] This application also exploits the inertness of the hexafluorophosphate anion toward strong reducing agents, such as lithium metal.
LiPF6 also catalyses the tetrahydropyranylation of tertiary alcohols.[2]
This salt is composed of the lithium cation and hexafluorophosphate anion (PF6-). The salt deteriorates at 70°C according to the following equation: LiPF6(s)-> LiF(s) + PF5(g). [3]
References
- ↑ "Challenges for Rechargeable Li Batteries" John B. Goodenough, Youngsik Kim Chem. Mater., 2010, volume 22, pp 587–603. doi:10.1021/cm901452z
- ↑ Nao Hamada; Sato Tsuneo (2004). "Lithium Hexafluorophosphate-Catalyzed Efficient Tetrahydropyranylation of Tertiary Alcohols under Mild Reaction Conditions". Synlett (10): 1802. doi:10.1055/s-2004-829550.
- ↑ "Xu, Kang. "Nonaqueous Liquid Electrolytes for Lithium-Based Rechargeable Batteries."Chemical Reviews 104.10 (2004): 4303-418. <http://pubs.acs.org/doi/pdf/10.1021/cr030203g>"
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