Radioactive Atoms Distribution in Aromatic Compounds Labelled by Exposure to Tritium Gas

摘要

Distribution of tritium atoms in chlorobenzene, nitrobenzene and anisole, labelled by contact with tritium gas, has been determined. In all the substances examined, ortho and para positions account for about 2/3 of the radioactivity of the pure tritiated compound. The ratio of activity found in para and meta positions, ranges from 1 :1 in the chlorobenzene to 1 :0.6 in the anisole and 1 :4 in the nitrobenzene, depending on the nature of the substituent groups in the irradiated compound.