| 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} |
| 618 | DF | .~.~ Halogen produced {3} |
| 622 | ![]() | .~.~.~ Utilizing specified electrode other than graphite or inorganic carbon {3} |
| 623 | DF | .~.~.~.~> Mercury or amalgam cathode |
| 624 | DF | .~.~.~.~> Diaphragm or membrane bonded electrode |
| 625 | DF | .~.~.~.~> Coated electrode |