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Absorption spectrum


Yellow, needle-like crystals that are derived from Anthracene or Phthalic anhydride. Anthraquinone was first sold commercially in 1901. It was used as the starting material in the manufacture of many synthetic dyes, such as alizarin. Anthraquinone may be detected by the appearance of a red color on treatment with alkali, Zinc powder, and Water.

Synonyms and Related Terms

anthroquinone (sp); 9,10-anthracenedione; 9,10-anthraquinone; 9,10-dioxoanthracene; Morkit; Anthradione; Anthrachinon (Deut.); anthraquinon (Fr.); antrachinone (It.)

Chemical structure



Combustible. Flash point = 185C (365 F). Causes skin irritation.

Fisher Scientific: MSDS

Physical and Chemical Properties

Soluble in ethanol, ether and acetone. Insoluble in water.

Composition C6H4(CO)2C6H4
CAS 84-65-1
Melting Point 286 C
Density 1.419-1.438 g/ml
Molecular Weight mol. wt.=208.05
Boiling Point 379-381 C

Resources and Citations

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 284
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Hoechst Celanese Corporation, Dictionary of Fiber & Textile Technology (older version called Man-made Fiber and Textile Dictionary, 1965), Hoechst Celanese Corporation, Charlotte NC, 1990
  • Rosalie Rosso King, Textile Identification, Conservation, and Preservation, Noyes Publications, Park Ridge, NJ, 1985
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 726
  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997