Abstract
A study on the dissolution behavior of hydrogen gas in aqueous solutions containing strong electrolytes was done to elucidate the dependence of both concentration and effective diameters of electrolyte-constituting ions upon the solubility, as well as the dissolution rate, of hydrogen gas. The main results obtained are as follows:(1) Dissolution rate of hydrogen gas, and its solubility as well, in the aqueous solutions of strong electrolytes decreases with the increase in both the concentration of electrolytes and the effective diameters of electrolyte-constituting ions.(2) Solubility of hydrogen gas in a binary H2 SO4-CuSO4 solution can be estimated as the sum of the solubilities of hydrogen gas in the respective solutions.(3) The value of hydrogen solubility in an aqueous solution containing strong electrolyte can be roughly estimated by taking the concentration of electrolyte and the effective diameter of constituting ions into considerations.(4) The rate of hydrogen reduction of silver from a silver nitrate solution at 50°C and 500 rpm was found to be controlled by the dissolution rate of hydrogen gas in the aqueous solution.
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