Lithium hexafluorosilicate is a white, odorless solid that is soluble in water and methanol. When heated above 250 °C, it decomposes into lithium fluoride and silicon(IV) fluoride. It has a trigonal crystal structure with the space group P 321 (space group no. 150) and three formula units per unit cell, isotypic to sodium hexafluorosilicate.[4][5]
Uses
Lithium hexafluorosilicate is used as an intermediate in the manufacture of pharmaceuticals and other chemical compounds. It is also an intermediate in the preparation of lithium chloride from lithium-containing minerals by reacting with hexafluorosilicic acid.[citation needed]