Hydrofluoric acid is also broadly used as ... Fluorspar is treated with sulfuric acid, creating hydrogen fluoride and calcium sulfate, which in hydrated form is known as gypsum.
Hydrofluoric acid (HF) and Hydrogen Fluoride (HF) are very poisonous, highly irritating and corrosive. Hydrofluoric acid or Hydrogen Fluoride (HF) is fatal if inhaled, if swallowed, or in contact with ...