| 423 / | HD | CHEMISTRY OF INORGANIC COMPOUNDS |
|
| 579 | DF | OXYGEN OR COMPOUND THEREOF {4} |
| 592 | DF | .~ Metal containing {12} |
| 624 | DF | .~.~ Group IIIA metal or beryllium (Al, Ga, In, Tl, or Be) {1} |
| 625 |  | .~.~.~ Aluminum {6} |
| 626 | DF | .~.~.~.~> Utilizing acid |
| 627 | DF | .~.~.~.~> Reacting metallic aluminum with water or water vapor |
| 628 | DF | .~.~.~.~> Forming catalyst, sorbent activated, or narrow pore alumina |
| 629 | DF | .~.~.~.~> Hydroxide |
| 630 | DF | .~.~.~.~> Utilizing carbon or compound thereof as reactant |
| 631 | DF | .~.~.~.~> Utilizing nitrogenous compound as reactant |