Used in advanced material synthesis, particularly in the development of novel catalysts and ceramic coatings. The combination of fluoride and sulfate anions enhances surface reactivity and acid strength in solid acid catalysts, making it valuable in petrochemical processes like alkylation and isomerization. It is also applied in surface treatment of metals, where the mixed anion system improves corrosion resistance and adhesion properties in industrial coatings. In electrochemistry, such mixtures serve as electrolyte additives in batteries and fuel cells, promoting stable ion conduction and electrode passivation. Additionally, this anion blend is explored in environmental chemistry for pollutant degradation, leveraging its strong oxidative and fluorinating potential to break down persistent organic contaminants.