Lithium hexafluorotungstate is an inorganic chemical compound with the chemical formula .

Synthesis Lithium hexafluorotungstate can be prepared by reacting lithium iodide and tungsten hexafluoride in liquid sulfur dioxide.

Physical properties The compound has the structure with unit cell parameters a=5.45 Å, α=57.4°.

Chemical properties Lithium hexafluorotungstenate is unstable and decomposes in a vacuum at 50 °C. It can react in an alkaline solution of hypochlorite as follows:

2 LiWF6 + ClO− + 14 OH− → 2 Li+ + 2 WO42− + Cl− + 12 F− + 7 H2O

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