Like no other element, fluorine plays a prominent role in many areas of chemistry, life sciences, technology, industry and modern life. Fluorine reacts with almost every element, and in principle fluorine atoms can be incorporated into any organic molecule, so that fluorine can form the most compounds of all elements. When H or OH is replaced by F in organic molecules, the bond energies and bond polarizations and thus the properties change significantly. Synthetic fluoroorganics are of increasing importance in active pharmaceutical ingredients, pesticides, lubricants and anticorrosives, dyes, liquid crystals, surfactants, ionic liquids, blood substitutes, etc. The thermally and chemically most stable polymers are fluoropolymers and their derivatives. ionomers such as B. Nafion are of great importance in fuel cells and electrolytes. On a million ton scale, low-molecular CHF compounds are also produced as substitutes for CFRPs and used as refrigerants, fuels, fire protection and solvents. Modern high-voltage and energy technology would be unthinkable without SF ₆ as an insulating gas; Even the production of semiconductor chips is not possible without high-purity hydrofluoric acid and plasma etching gases containing fluorine. Graphite fluoride and electrolytes with fluorinated anions are important components in electrochemical energy storage devices.

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