naphthalene
noun
a white, crystalline, water-insoluble hydrocarbon, C 1 0 H 8 , usually obtained from coal tar: used in making dyes, as a moth repellant, etc.
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Sodium amalgam reduces it to acenaphthone; chromic acid oxidizes it to naphthalic acid.
From The Project Gutenberg Encyclopedia Volume 1 of 28 by Project Gutenberg