Used as a nitrating agent in organic synthesis, particularly in the nitration of aromatic compounds. Serves as a catalyst or reagent in various chemical reactions due to its strong oxidizing properties. Employed in the preparation of aluminum oxide coatings and ceramics through sol-gel processes. Applied in textile industry for mordanting dyes, improving color fastness on fabrics. Utilized in the electronics industry for the production of insulating varnishes and in the manufacture of certain types of capacitors. Also used in corrosion inhibitors and in some antiperspirant formulations.