HOW H2SIF6 is form? - Answers

H2SIF6, or hydrogen hexafluorosilicate, is formed through the reaction of silicon dioxide (SiO2) with hydrofluoric acid (HF). This reaction typically occurs when silica is treated with an excess of HF, leading to the generation of hexafluorosilicate ions (SiF6²⁻) in solution, which can then combine with hydrogen ions (H⁺) to produce H2SIF6. This compound is often encountered in industrial processes involving fluorosilicate salts or as a byproduct in the production of silicon.