Fluorene - Fluorene

Japanese: フルオレン - ふるおれん(英語表記)fluorene
Fluorene - Fluorene
An aromatic hydrocarbon. Colorless, shiny, plate-like crystals. Usually fluorescent due to impurities, its alcohol solution in particular emits weak purple fluorescence. The name fluorene comes from this fluorescence. Melting point 116-117°C, boiling point 293-295°C. Insoluble in water, soluble in ether, benzene, etc. It is found in the high boiling fraction of coal tar (up to 300°C) and can be separated by distillation. It can be easily oxidized to obtain fluorenone. It is used as an intermediate in dye production.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
芳香族炭化水素の一つ。無色の光沢のある板状結晶。通常不純物のため蛍光があり,とくにそのアルコール溶液は弱い紫色の蛍光を発する。フルオレンの名はこの蛍光fluorescenceに由来する。融点116~117℃,沸点293~295℃。水に不溶,エーテル,ベンゼンなどに可溶。コールタール高沸点留分(~300℃)中に存在し,蒸留により分離する。酸化すると容易にフルオレノンが得られる。染料製造の中間体として用いられる。

出典 株式会社平凡社世界大百科事典 第2版について 情報

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