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Home > Anthraquinone

1 Physical properties

Anthraquinone melts at 286 °C, boils at 379.8°C. It is insoluble in water or alcohol, but dissolves in nitrobenzene and aniline.

2 Obtaining anthraquinone

There are several ways to obtain anthraquinone:

• Oxidation of anthracene
• Condensation of benzene with phthalic anhydride in presence of AlCl₃ (Friedel-Crafts substitution). The resulting o-benzoylbenzoic acid then undergoes cyclization, forming anthraquinone.
• Diels-Alder reaction (from naphtoquinone and a 1,3-diene)

3 Industrial applications

Anthraquinone is used in production of dyes, such as alizarin.
Many natural pigments are derivatives of anthraquinone.

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Topics: Anthraquinone Anthracene Water Properties Alcohol Condensation...

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AnthraquinoneAnthraquinone is a derivative of anthracene. Physical properties Anthraquinone melts at 286 °C, boils at 379. It is insoluble in water or alcohol, but dissolves in nitrobenzene and aniline. Obtaining anthraquinone There are several ways to obtain anthraqu