Electrochemical Deposition and Dissolution of Thallium from Sulfate Solutions

Figure 2

Cyclic polarization curves of Tl⁺ ( = 10⁻³ mol L⁻¹) on glassy carbon electrode at different scan rates in the presence of oxygen (air saturated solutions). The electrolyte was 0.5 mol L⁻¹ Na₂SO₄, pH = 7. (1) 50 mV/s; (2) 20 mV/s; (3) 10 mV/s; (4) 5 mV/s.