Conductance of Salts in Ammonia by a Precision Method 1565 taken as the activity of hydronium ions in the inner ion layer. The latter is the case actually observed.Acknowledgment.-The author would like to express his indebtedness and his sincere gratitude to the National Research Council for the grant of a Fellowship which made this research possible, and to Professor George Scatchard of . I. T. for his inspiring guidance, help and encouragement during the prosecution of this problem. He would also like to express his appreciation to Professors

It is generally known1 that trialkylbismuth compounds are oxidized by air at ordinary temperatures so rapidly that they ignite spontaneously, in some cases with explosive violence.5 Under these conditions the bismuth compound is probably oxidized completely to bismuth trioxide. Reports of studies on the intermediate steps or of the mechanism of such oxidations have not appeared in the literature. It was the purpose of the present work to study the oxidation of triethylbismuth under controlled conditions with the view of isolating and identifying both the intermediate and final products of oxidation, and, if possible, to determine the mechanism of such an oxidation.Such a study has been carried out by treating triethylbismuth stepwise with oxygen under carefully controlled temperature conditions, collecting and isolating the various gaseous, liquid, and solid products formed in each step, and identifying the various products by analyses or other suitable means.

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