205 / | HD | ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS |
334 | DF | ELECTROLYTIC SYNTHESIS (PROCESS, COMPOSITION, AND METHOD OF PREPARING COMPOSITION) {21} |
615 | DF | .~ Preparing nonmetal element {8} |
633 | DF | .~.~ Oxygen produced {3} |
634 | .~.~.~ Utilizing inorganic solid electrolyte |