Used in agriculture as a key component in the production of phosphate fertilizers to enhance plant growth and root development. Commonly applied in the food industry as an acidulant in soft drinks, providing a tangy flavor and acting as a preservative. Employed in dentistry and orthodontics to etch tooth surfaces, improving adhesion of fillings and braces. Utilized in metal surface treatment for rust removal and as a conversion coating to improve paint adhesion. Found in cleaning products for its ability to dissolve mineral deposits and scale. Also used in pharmaceuticals as an acidifying agent in certain medications.