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Lithium hexafluorogermanate
Names
IUPAC name
Lithium hexafluorogermanate
Other names
Lithium germanium fluoride
Identifiers
InChI=1S/F6Ge.2Li/c1-7(2,3,4,5)6;;/q-2;2*+1
Key: CRAVKAIWEHPLQK-UHFFFAOYSA-N
[Li+].[Li+].F[Ge-2](F)(F)(F)(F)F
[Li+].[Li+].F[Ge-2](F)(F)(F)(F)F
Properties
Li2 GeF6
Molar mass
200.51 g/mol
Appearance
white solid
Melting point
510 °C (950 °F; 783 K)
53.9 g / 100 g water (25°C)
Hazards
NFPA 704 (fire diamond)
Safety data sheet (SDS)
External MSDS
Related compounds
Related compounds
Gadolinium oxysulfide
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
Chemical compound
Lithium hexafluorogermanate is the
inorganic compound with the
formula Li2 GeF6 . It forms a solid off-white
deliquescent powder. When exposed to moisture, it easily hydrolyses to release
hydrogen fluoride and
germanium tetrafluoride gases.
[1]
Reactions and applications
Lithium hexafluorogermanate can be dissolved in a solution of hydrogen fluoride, which forms a precipitate of
lithium fluoride .
[2]
It can be used as a densification aid in the sintering of
gadolinium oxysulfide ,
[3]
[4] and as a lithium salt additive in a lithium-ion battery electrolyte.
[5]
References
^
"Lithium Hexafluorogermanate Safety Data Sheet" (PDF) . Lorad Chemical Corporation. Retrieved 2017-09-20 .
^ Tychinskaya, I.I., Opalovskii, A.A. & Nikolaev, N.S. Russ Chem Bull (1965) 14: 725.
https://doi.org/10.1007/BF00846742
^ L. S. Bolyasnikova, V. A. Demidenko, S. B. Eron'ko, O. P. Ovsyannikova, and S. B. Mikhrin, "Gd2O2S:Pr:Ce Optical Scintillation Ceramics and their Properties," J. Opt. Technol. 73, 138-142 (2006).
^
"Lithium Hexafluorogermanate" . Lorad Chemical Corporation. Retrieved 2017-09-19 .
^
CN application 103326066 , Gong Weihua, "Lithium-ion battery electrolyte", published 2013-09-25, assigned to Suzhou Nuoxin Innovation Energy Co. Ltd.
PF6 − , AsF6 − , SbF6 − compounds AlF6 − compounds chlorides, bromides, iodides and pseudohalogenides SiF6 2- , GeF6 2- compounds Oxyfluorides Organofluorides with transition metal, lanthanide, actinide, ammonium nitric acids bifluorides thionyl, phosphoryl, and iodosyl