Used as a nitrating agent in organic synthesis, particularly in the preparation of aromatic nitro compounds. Serves as a catalyst or reagent in various laboratory-scale chemical reactions due to its strong oxidizing properties. Employed in the textile industry for mordanting dyes, improving color fastness on fabrics. Utilized in the production of aluminum oxide coatings and ceramics by thermal decomposition. Also applied in corrosion inhibitors and in some formulations for metal surface treatment. Its hygroscopic nature makes it useful in certain dehydration processes and as a desiccant in controlled environments.