Used in fertilizer production to provide phosphorus, an essential nutrient for plant growth. Commonly applied in the manufacturing of agricultural chemicals, especially in creating water-soluble phosphate fertilizers. Widely used in the food industry as an acidulant in soft drinks, particularly colas, to provide a tangy flavor and control pH. Also serves as a preservative and stabilizer in processed foods and beverages. Employed in dentistry and orthodontics for etching teeth to improve adhesion of bonding materials. Used in over-the-counter dental cleaning products for removing plaque and stains. Applied in metal surface treatment processes, such as rust removal and phosphating, where it forms a protective phosphate coating on steel and other metals to prevent corrosion. Utilized in pharmaceuticals as an active ingredient in some dental cements and as a pH adjuster in various formulations. Also used in effervescent tablets and as a source of phosphorus in nutritional supplements. Found in cleaning products for industrial and household use due to its ability to dissolve mineral deposits and neutralize alkaline residues.