... toxic (T+)Corrosive (C)R-phrasesR26/27/28, R35S-phrases(S1/2), S7/9, S26, S36/37, S45NFPA 704042CORFlash pointNon-flammableRelated ... 100%, the acidity increases dramatically because of the following equilibrium:2 HF H+ + FHF−The bifluoride (FHF−) anion is stabilized ... sulfate according to the following chemical equation:CaF2 + H2SO4 → 2 HF + CaSO4Although bulk fluorite is a suitable precursor and a ...