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1 2019

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Effect of azathioprine on the parameters of double Hg/chlorate(VII) interface layer in the presence of nonionic surfactants

Kaliszczak Waldemar, Grochowski Mariusz, Nosal-Wiercińska Agnieszka, Brycht Mariola, Checinska-Majak Dorota, Gołębiowska Beata

Physicochemical Problems of Mineral Processing

2019

Vol. 55, iss. 6

1350--1356

The mixed adsorption of azathioprine and Triton X-100 or Tween 80 at the mercury/ chlorates (VII) interface wasdescribed. The differential capacitance of the double layer Cd at the Hg/ basic electrolyte interface was measured using the electrochemical impedance spectroscopy. The potential of zero charge Ez wasdetermined applying streaming mercury electrode and the surface tension at the potential of zero charge γz was measured by the method of the highest pressure inside the mercury drop. The changes of determined parameters in the function of the supporting electrolyte concentration point with the participation of ClO4-ions in the adsorption process, as well as the electrostatic interactions between the dipoles of H2O and azathioprine–Triton X-100 or azathioprine–Tween 80 in the double layer are shown.