kaliumpyrofosfaat

Kaliumpyrofosfaat, also known as dipotassium phosphate, is an inorganic compound with the chemical formula K2P2O7. It is a salt of pyrophosphoric acid and potassium. In its anhydrous form, it appears as a white crystalline powder. It is soluble in water and is typically found as a tetrahydrate, K2P2O7·4H2O.

This compound finds several applications due to its properties as an emulsifier, stabilizer, and buffering agent. In the food industry, kaliumpyrofosfaat is used as a food additive (E number E450(v)) to prevent caking, improve texture, and act as a leavening agent in baked goods. It is also employed in dairy products to prevent fat separation and in processed meats to retain moisture.

Beyond food applications, kaliumpyrofosfaat is utilized in detergents as a builder to enhance cleaning efficiency by sequestering hard water ions. It also has uses in water treatment to prevent scale formation and in some industrial processes as a deflocculant. In medicine, it can be used as a source of phosphorus in intravenous solutions. The production of kaliumpyrofosfaat typically involves the thermal decomposition of dipotassium hydrogen phosphate.