Fig. 9
Plotting of the experimental data on the Lippmann diagrams for dissolution of the hydroxypyromorphite–hydroxyapatite solid solution [(PbxCa1−x)5(PO4)3OH]. a 25 °C and an initial pH of 2.00, the arrows indicated the evolution directions of the aqueous solution during the solid solution–aqueous solution interaction; b 25 °C and an initial pH of 5.60; c 25 °C and an initial pH of 9.00