| 摘要 |
<p>PROBLEM TO BE SOLVED: To refine only a pure element by controlling with a ratio of the increment of the mass of an element reduced on a negative electrode to the change of current every constant time. SOLUTION: The element dissolved in an acid is deposited on the electrode. And the ratio of the element deposited on the electrode to the used quantity of electricity is measured every constant time. Whether current is continued to be applied or not is judged by examining the specific ratio between the charge and mass of the element by a computer. At this time, the specific ratio is fixed by Periodic table.</p> |
