“…Here the following species (charged and uncharged) have been considered: H+, OH-, CO;, HCO;-, H2CO�, CI-, Na+, NaOHo, NaCO;-, NaHCO�, Pb 2 +, PbCO�, Pb(C03);, PbOH+, Pb(OH)�, Pb(OH);-, Pb20H 3 -, Pb3(OH);, PbiOH):-, Pb6(OH):-, PbCl +, PbClg, PbCl;-, and PbCl;. Thermodynamic data for the different species were taken from Hem (1976), Wagman et al (1982), Smith and Martell (1976), and Truesdel and lones (1974). Figure 4a shows the evolution of both pH and saturation states, calculated for a hypothetical situation in which no nu cleation of cerussite occurs, as a function of the amount of dissolved phosgenite in pure water.…”