Pullulan

Phosphoric acid is a clear, colorless, and odorless mineral acid with the chemical formula H3PO4. It is a triprotic acid, which means that it can donate three protons (hydrogen ions) per molecule when dissolved in water. Phosphoric acid is commonly used in the production of fertilizers, detergents, and food additives, as well as in various industrial applications, such as rust removal and metal surface treatment. It is also used in the production of soft drinks, where it gives a tart flavor and acts as a preservative.