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 ...

Hydrogen Chloride Hydrogen chloride is known by its formula name, HCl. It is a highly corrosive and toxic, colorless gas. White fumes form on contact with humidity. HCl often refers to hydrochloric ...