Fluorine; hydrofluoric acid; salts for galvanic cells; acidulated water for recharging batteries; galvanizing baths; fire retardants; antioxidants; rubber preservatives; accelerators for speeding up chemical reactions; chemical preservatives; battery electrolytes; catalysts for use in the manufacture of synthetics, rubbers and polymers; catalysts for use in the manufacture of rubber; chemical cleaning agents for use in industrial processes