| 423 / | HD | CHEMISTRY OF INORGANIC COMPOUNDS |
| 1 | DF | TREATING MIXTURE TO OBTAIN METAL CONTAINING COMPOUND {15} |
| 49 | DF | .~ Group VIIB metal (Mn, Tc, or Re) {1} |
| 50 | ![]() | .~.~ Forming insoluble substance in liquid {2} |
| 51 | DF | .~.~.~> Halogenating |
| 52 | DF | .~.~.~> Sulfating |