Widely used as a catalyst in organic synthesis, particularly in Friedel-Crafts alkylation and acylation reactions, due to its strong acidic properties. It is effective in promoting the formation of carbon-carbon bonds, making it valuable in the production of pharmaceuticals and fine chemicals. Additionally, it serves as a stabilizer in polymerization processes, enhancing the durability and performance of polymers. Its use in electrochemistry as an electrolyte additive improves the efficiency and stability of batteries and fuel cells. In the field of materials science, it is employed in the preparation of advanced materials with specific electronic or optical properties.