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 |