Ferron is widely used as a colorimetric reagent for the determination of aluminum in various samples. It forms a red complex with aluminum under acidic conditions, which can be measured spectrophotometrically. This application is particularly useful in environmental testing, such as analyzing aluminum content in water, soil, and industrial effluents. Ferron is also employed in kinetic studies to differentiate between labile and non-labile aluminum species, helping assess aluminum toxicity and bioavailability. Its selectivity and sensitivity make it a valuable tool in analytical chemistry for quality control in pharmaceuticals, food, and beverage industries where aluminum monitoring is critical.