Aluminon is primarily used as a dye in analytical chemistry for the detection and quantification of aluminum ions in various samples. It forms a distinct red-colored complex with aluminum, which can be measured spectrophotometrically to determine aluminum concentrations. This application is particularly useful in environmental monitoring, where it helps assess aluminum levels in water sources, soil, and industrial effluents. Additionally, it is employed in biochemical research to study aluminum's role in biological systems and its potential toxicity. The reagent is also utilized in quality control processes in industries such as pharmaceuticals and food production to ensure aluminum content remains within safe limits.