Phosphoric acid is a colorless, odorless liquid with the chemical formula H₃PO₄. It is a weak acid commonly used in fertilizers, food flavoring, and soft drinks. In agriculture, it helps provide essential phosphorus to plants, promoting growth and development. In addition to its agricultural uses, phosphoric acid plays a role in various industrial processes, including metal treatment and the production of detergents. It can also be found in dental products, where it is used to etch enamel surfaces before applying sealants or fillings.