Used in water treatment to remove impurities and as a coagulant aid in clarifying water. Commonly applied in wastewater treatment to precipitate phosphates and reduce odor. Employed in the manufacturing of iron-based chemicals and pigments. Utilized in agriculture as a micronutrient fertilizer to correct iron deficiency in soils and prevent chlorosis in plants. Found in moss control products for lawns and turf. Used in the pharmaceutical industry as a dietary supplement to treat iron-deficiency anemia. Serves as a reducing agent in chemical synthesis and in the production of inks, dyes, and wood preservatives. Also used in horticulture to lower soil pH and supply iron to acid-loving plants.