times. Usual run times were 15 to 20 minutes and nearmaximum temperatures were attained within 5 minutes. After the reactant gases were shut off, the reactor was swept out with nitrogen. The liquid reactor products were separated from the quench water, dried over sodium sulfate, and analyzed by gas chromatography. The quench water was extracted with carbon tetrachloride and titrated to determine the hydrochloric acid content.Chlorine was determined by treating the carbon tetrachloride extract with aqueous potassium iodide and titrating the liberated iodine with thiosulfate.
Nitrobenzene refluxed over a variety of solid catalysts near its standard boiling point of 211°C. Polymerizes to give compounds whose structure appears to be that of a triaryl amine polymer. Under similar conditions aniline gives polymers whose structure appears to be a mixture of diaryl and triaryl amine bonds.
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