Process for storing a gas mixture in passivated metal containers to enhance the stability of gaseous hydride mixtures at low concentration in contact therewith

摘要

A process for passivating a metal surface to enhance the stability of a gas mixture containing one or more gaseous hydrides in low concentration in contact therewith, which comprises:a) purging gas in contact with said metal surface with inert gas to remove the purged gas,b) exposing the metal surface to an amount of a gaseous passivating agent comprising an effective amount of a gaseous hydride of silicon, germanium, tin or lead and for a time sufficient to passivate said metal surface, andc) purging said gaseous passivating agent using inert gas.