| 摘要 |
The phosphide of aluminum or magnesium is prepared by a process comprising reacting the finely divided metal or an alloy of both metals with yellow phosphorus at a temperature between 300 and 600.degree.C in an inert gas atmosphere and in the presence of a catalyst which is water, chlorine, bromine or iodine or a compound of such element with phosphorus, sulfur, hydrogen, zinc or of the metal which is being reacted, or ammonium halides. The phosphides are used in fighting pest compositions. |
