Interaction Between Two Similar Plane Parallel Double Layers for (NH_4)_2Fe(SO_4)_2 or (NH_4)_2Cu(SO_4)_2 Type Complex Salt Electrolytes at Positive Surface Potential

摘要

Interaction energies between two similar plane parallel double layers for (NH_4)_2Fe(SO_4)_2 or (NH_4)_2Cu(SO_4)_2 type complex salt electrolytes at positive surface potential were expanded in a power series and accurate numeral results were given for 0.1 ≤ y_e < y_0 ≤ 20. The general expressions were given for the interaction energies of A_ν+B_ν′+C_ν- type complex salt electrolytes at y > 0. The interaction energies for simple salts NaCl, CaCl_2, Na_2SO_4, FeCl3, Na_3PO_4, Mg3(PO_4)_2, Al2(SO_4)3, and complex salts (NH_4)_2Fe(SO_4)_2 or (NH_4)_2Cu(SO_4)_2 at y_0 = 1 were compared. There was hardly difference between these simple salts and this complex salt for the interaction energies. The interaction energy for complex salt (NH_4)_2Fe(SO_4)_2 was close to that for simple salt Na_3PO_4.Supplemental files are available for this article. Go to the publisher's online edition of the Journal of Dispersion Science and Technology to view the free supplemental file.