Online Encyclopedia

ACENAPH

Online Encyclopedia
Originally appearing in Volume V01, Page 135 of the 1911 Encyclopedia Britannica.
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ACENAPH  rHENE, C12H1o, a

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hydrocarbon isolated from the fraction of
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coal-
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tar boiling at 260°—270° by M . P . E . Berthelot, who, in conjunction with Bardy, afterwards synthesized it from a-
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ethyl naphthalene (
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Ann . Chem . Phys., 1873, vol.
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xxix.) . It forms white needles (from
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alcohol), melts at 950 and boils at 2780 . Oxidation gives naphthalic acid (1.8 naphthalene dicarboxylic acid) . Acenaphthalene, C12 H8, a hydrocarbon crystallizing in yellow tables and obtained by passing the vapour of acenaphthene over heated litharge . Sodium
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amalgam reduces it to acenaphthene; chromic acid oxidizes it to naphthalic acid .

End of Article: ACENAPH
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