Phosphoric acid is used as a food additive to acidify various foods, such as meat, cheese, jam, and non-alcoholic beverages (Coke, soft drinks, etc.). It gives a sour and tangy taste. Various salts of phosphoric acid, such as monocalcium phosphate, are used as leavening agents in bread dough and cake flour. It is also used as a nutrients source for yeast in wine brewery.
Phosphoric acid is used as a sanitizing agent in the dairy, food, and brewing industries. It may be used for dissolving mineral deposits and hard water scale on equipment and various surfaces especially in poultry, meat, and general food processing plants.
Phosphoric acid is included as a pH adjuster in some cosmetics and skin-care products.
It is also used in dentistry and orthodontics as an etching solution, to clean and roughen the surfaces of teeth.
Phosphoric acid has applications in removing rust by direct application to rusted iron, steel tools, or other surfaces.
