Used as a mordant in textile dyeing to help fix dyes onto fabrics, especially in natural dye processes, improving color fastness and enhancing hue intensity. Also applied in metal surface treatment, particularly for aluminum anodizing, to increase corrosion resistance and improve adhesion of paints or coatings. Employed in the preparation of aluminum-based catalysts and in the synthesis of fine ceramics and heat-resistant materials due to its thermal decomposition properties, forming stable high-temperature structures. Additionally, it serves as a flocculating agent in water treatment to remove impurities and phosphates. In laboratory research, it is used for synthesizing other high-purity aluminum compounds. Furthermore, it finds use in the production of specialty glasses and coatings where controlled release of aluminum and oxalic acid is beneficial.