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 ...

Although chemists consider hydrofluoric acid (HF) to be a “weak” acid ... HF burns cause excruciating pain and are very slow to heal. Skin contact with HF is probably the most common route of exposure ...