Fluoride ion causes soft tissue necrosis (similar to alkali damage) and bone damage by binding calcium. HF burns cause excruciating pain and are very slow to heal. Skin contact with HF is probably the ...

Hydrofluoric acid or Hydrogen Fluoride (HF) is fatal if inhaled, if swallowed, or in contact with skin. It causes severe skin burns and eye damage. The effects may be delayed after exposure. Do not ...