Used in water treatment to remove impurities and as a coagulant aid in clarifying drinking water. Commonly applied in wastewater treatment to precipitate phosphates and reduce nutrient pollution. Serves as a precursor in the synthesis of iron-based chemicals and pigments. Employed in agriculture as a micronutrient fertilizer to correct iron deficiency in soils and prevent chlorosis in plants. Utilized in the pharmaceutical industry as a dietary supplement to treat iron-deficiency anemia. Acts as a reducing agent in chemical manufacturing processes. Also used in the production of inks, dyes, and in the textile industry for fabric printing and dyeing.