Lithium hexafluorogermanate is the inorganic compound with the formula Li2GeF6. It forms a solid off-white deliquescent powder. When exposed to moisture, it easily hydrolyses to release hydrogen fluoride and germanium tetrafluoride gases.
Reactions and applications Lithium hexafluorogermanate can be dissolved in a solution of hydrogen fluoride, which forms a precipitate of lithium fluoride.Tychinskaya, I.I., Opalovskii, A.A. & Nikolaev, N.S. Russ Chem Bull (1965) 14: 725. https://doi.org/10.1007/BF00846742
It can be used as a densification aid in the sintering of gadolinium oxysulfide,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). and as a lithium salt additive in a lithium-ion battery electrolyte.
References