Differential capacities at the dropping mercury electrode in solutions of some inorganic halides in formamide, dimethylformamide, and acetonitrile have been measured. For cesium iodide in dimethylformamide and acetonitrile a rather large increase of the differential capacity, depending on the concentration of electrolyte in the region of high cathodic polarization, has been observed. For lithium chloride and bromide in the same solvents both effects were very small. It has been shown for a number of solvents that the minimum values of the differential capacity for 0.1M electrolyte solutions are roughly proportional to the dielectric constant of the solvent. The hump usually appearing on the curves of differential capacity for aqueous solutions of electrolytes has also been observed for formamide solutions, but was absent in the case of solutions in organic solvents of low dielectric constant.

No abstract

No abstract

No abstract