17.4 FORMATION OF METAL SULFIDES
The solubilities of several metal sulfides are given by Reactions 29 through 52 of Table 17.2. The pe + pH to which soils must be lowered before each of the metal sulfides can form in soils is shown in Fig. 17.4. An example of how the lines in this figure were developed is shown for Hg2S(c) by combining
the following equilibrium reactions: