Used in agriculture as a key component in the production of phosphate fertilizers to enhance plant growth and root development. Commonly employed in the food and beverage industry as an acidulant to provide tartness, especially in soft drinks and processed foods. Serves as a rust remover and metal cleaner in industrial settings due to its ability to convert iron oxide into a protective phosphate coating. Utilized in dentistry and orthodontics for etching tooth surfaces to improve adhesion of fillings and braces. Acts as a pH adjuster in cosmetic and personal care products to maintain stability and desired acidity. Employed in the pharmaceutical industry as an excipient or active ingredient in dental treatments and nutritional supplements. Used in water treatment processes to control scale formation and corrosion in plumbing and industrial equipment.