A data set of equilibrium lines calculations in the precipitation of metal sulfides in the presence of metal cations and thiocomplexes

Database for calculating the concentration at which metal sulfides begin to precipitate, with respect to pH value. Gibbs free energies of formation and equilibrium constants were used to calculate the equilibrium lines at which metal sulfide precipitation begins. The equilibrium of the precipitation of metal sulfides (CuS, FeS, PbS, and ZnS) was studied in the presence of the metal cation (Cu2+, Fe2+, Pb2+, and Zn2+), and of the thiocomplexes (Cu(HS)3-, Fe(HS)2o, Fe(HS)3-, Pb(HS)2o, Pb(HS)3-, Zn(HS)2o, and Zn(HS)3-).In addition, the behavior of the equilibrium lines was studied at two sulfide concentrations: 10 mg/L and 100 mg/L.The database consists of an Excel file with three sheets, the first one with case 1A (equilibrium between metal sulfides and cations), the second one with case 2A (equilibrium between metal sulfides, metal cations and thiocomplexes), and the third one with case 1B (where both metal cations and thiocomplexes are considered and the concentration of metal sulfides is determined). The file has a size of 92 KB.