Solid calcium fluoride (CaF2) reacts with sulfuric acid (H2SO4)
to form solid calcium sulfate (Ca... Solid calcium fluoride (CaF2)
reacts with sulfuric acid (H2SO4) to form solid calcium sulfate
(CaSO4) and gaseous hydrogen fluoride (HF). The HF is then
dissolved in water to form hydrofluoric acid. A source of calcium
fluoride is fluorite ore containing 96.0 wt% CaF2 and 4.0 wt% SiO2.
In a typical hydrofluoric acid manufacturing process, fluorite ore
is reacted with 93 wt% aqueous sulfuric acid, supplied...