Calcium pyrophosphate
Chemical compound
Calcium pyrophosphate is a chemical compound, an insoluble calcium salt containing the pyrophosphate anion. There are a number of forms reported: an anhydrous form, a dihydrate, Ca₂P₂O₇·2H₂O and a tetrahydrate, Ca₂P₂O₇·4H₂O. Wikipedia
Formula: Ca2O7P2
Molar mass: 254.053 g/mol
Density: 3.09 g/cm³
Solubility: soluble in HCl, nitric acids
Flash point: Non-flammable
Melting point: 1,353 °C (2,467 °F; 1,626 K)
Other anions: Calcium phosphate