Equilibria among condensed phases and a multi-component solution using the concept of generalized species: Part I. Systems with mixed complexes

摘要: Abstract A method for the construction of predominance-existence diagrams (PED) in saturated multi-component solutions is discussed. The utilization generalized species and equilibria, both solution condensed phases, allows analysis saturation conditions from an intrinsic solubility equilibrium [M (τ) c ⇌ M ]. Likewise, algorithm proposed selection most insoluble phase (c) , a condensed-phases diagram (CPD) dependent upon parameters solution. CPD constructed utilizing interconversion where multi-conditional constants are only on buffering conditions; it also necessary to consider maximum number phases that can coexist system (phase rule), electroneutrality variables involved equations. consideration mixed complexes all with simple as extension concept used previously. In order exemplify method, graphical representations following discussed: Zn(II)H 2 OH, C O 4 H OH Ca(II)H SO H oxalic acid.