Keywords: Pyrophosphoric-acid-3D-spacefill.png Space-filling model of the pyrophosphoric acid molecule also known as diphosphoric acid an inorganic oxoacid Colour code F0F0F0 Hydrogen H white<br> F51E1E Oxygen O red<br> FA8C00 Phosphorus P orange<br> 2011-06-04 own DS Visualizer Jynto talk Ball-and-stick version cc-zero Pyrophosphoric acid Images by Jynto |