Used in fertilizer production to provide phosphorus essential for plant growth. Commonly employed in food and beverage industry as an acidulant in soft drinks to provide tartness and preserve freshness. Utilized in dental and orthodontic treatments for etching tooth surfaces to improve adhesion of fillings and braces. Applied in rust removal and metal surface treatment to convert iron oxide into stable iron phosphate layer. Serves as a pH adjuster in cosmetics, detergents, and pharmaceuticals. Also used as a cleaning agent in industrial equipment due to its ability to dissolve mineral deposits.