H₃PO₄, commonly known as phosphoric acid, is a colorless, odorless liquid that is widely used in various industries. It is a triprotic acid, meaning it can donate three protons (H⁺ ions) in solution. This property makes it useful in applications such as fertilizers, food flavoring, and cleaning agents. In the laboratory, H₃PO₄ serves as a reagent and pH adjuster. It is also an important component in the production of phosphate compounds, which are essential for plant growth. Due to its corrosive nature, proper safety precautions are necessary when handling this chemical.