Abstract
FROM a tar produced by distillation of Pooley Hall-Wearmouth coal, carbonised at 600°, a fraction boiling at 313°-360° was obtained which yielded a complex mixture of aromatic hydrocarbons distinguished even in an impure state by their bright colours. Predominant among these hydrocarbons is β-methylanthracene which was identified by conversion into β-methylanthraquinone and anthraquinone-β-carboxylic acid. The identity of the β-methylanthraquinone obtained in our experiments was established by comparison with a specimen of synthetic β-methylanthraquinone furnished by Mr. W. H. Dawson of the British Alizarine Co. Additional proof of the identity of -methylanthracene was obtained by comparing its carboxy acid with the anthraquinone-β-carboxylic acid prepared by oxidising the β-methylanthraquinone from the British Alizarine Co.
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