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 alumina-based catalysts and ceramic materials. Also applied in corrosion inhibition studies and as a component in some antiperspirants and cosmetics. Its hygroscopic nature makes it useful in moisture-absorbing formulations.