Widely used in water treatment processes, this chemical acts as a coagulant to remove suspended particles and impurities. It helps clarify drinking water and treat wastewater by promoting the aggregation of fine particles into larger flocs that can be easily separated. Commonly applied in municipal water treatment plants, it is effective in removing turbidity, color, and certain contaminants like phosphates. In the paper industry, it is used to adjust pH and improve the retention of fillers and fibers during papermaking. It also plays a role in the production of dyes and pigments by acting as a precipitating agent. In agriculture, it can be applied to lower soil pH in alkaline soils, making it more suitable for certain crops. Additionally, it finds use in fireproofing materials and as an additive in antiperspirants due to its astringent properties. Its ability to release aluminum ions makes it valuable in various industrial processes requiring flocculation or pH adjustment.