Determination of formal charge transfer coefficients in adsorption processes in the system Hg,Tl, Tl+, H2O: II. Electrocapillary curves of the second kind

The determination of the dependence of the formal charge transfer coefficient n₂ on the amalgam solution potential difference ψ from the equilibrium electrocapillary curves of the 2nd kind (taken under the condition μ_Tl=const) shows that there exists a discontinuity on the n₂, ψ curve, i.e. a transition from n₂=∞ to n₂=?∞ with increasing ?ψ. The cause of this anomaly is the existence of a minimum on the surface tension of an uncharged amalgam surface vs. μ_Tl curve, which is observed in the case of the Tl-amalgam/vacuum interface as well.