(an’ -thra-sen) A hydrocarbon formed from many carbon compounds when they are exposed to a high heat; also from coal-tar. It crystallizes in colorless, monoclinic tables, showing a beautiful blue fluorescence; dissolves with difficulty in alcohol and ether, but easily in hot benzene; melts at 213 . It is the base from which artificial alizarin is prepared. A. Colors. See Pigments, Conspectus of. A. Oil, the fraction of coaltar distilling from 270A

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Definition of  ANTHRACENE