Pyrofosforihappoa
Pyrofosforihappoa, also known as pyrophosphoric acid, is an inorganic chemical compound with the formula H₄P₂O₇. It is a strong acid and a dimer of phosphoric acid. Pyrophosphoric acid is a colorless, viscous liquid or solid. It is soluble in water, where it undergoes hydrolysis to form phosphoric acid.
The synthesis of pyrophosphoric acid typically involves heating phosphoric acid to high temperatures, driving off water
Pyrophosphoric acid is a strong dehydrating agent and can react vigorously with water. Its salts are called