Peroxo di phosphoric acid, scientifically known as peroxydiphosphoric acid, is a distinct oxyacid of phosphorus characterized by its chemical formula, H₄P₂O₈.
Chemical Nature and Classification
Peroxydiphosphoric acid is fundamentally an oxyacid of phosphorus, meaning it is an acid whose molecules contain oxygen atoms, specifically including a peroxide (O–O) linkage. This unique structural feature differentiates it from other phosphorus oxyacids. The salts derived from this acid are known as peroxydiphosphates.
It is one of two prominent peroxyphosphoric acids, the other being peroxymonophosphoric acid (H₃PO₅). The "di" in peroxydiphosphoric acid signifies the presence of two phosphorus atoms within its molecular structure, connected through a peroxo bridge.
Key Characteristics of Peroxydiphosphoric Acid
Understanding the properties of peroxydiphosphoric acid involves recognizing its core chemical composition and classification.
| Characteristic | Detail |
|---|---|
| Chemical Formula | H₄P₂O₈ |
| Classification | Oxyacid of phosphorus; Peroxyphosphoric acid |
| Associated Salts | Peroxydiphosphates |
| Related Acid | Peroxymonophosphoric acid (H₃PO₅) |
- Standard State Data: Chemical data for peroxydiphosphoric acid, such as its properties and reactivity, are typically given for materials in their standard state. This standard condition is defined at a temperature of 25 °C (77 °F) and a pressure of 100 kPa (kilopascals).
