anthraquinone

American  

[an-thruh-kwuh-nohn, -kwee-nohn, -kwin-ohn] / ˌæn θrə kwəˈnoʊn, -ˈkwi noʊn, -ˈkwɪn oʊn /

noun

Chemistry.

1. a yellow, water-insoluble, crystalline powder, C 14 H 8 O 2 , usually derived from anthracene or phthalic anhydride: used chiefly in the manufacture of anthraquinone dyes.

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anthraquinone British  

/ -ˈkwɪnəʊn, ˌænθrəkwɪˈnəʊn /

noun

1. a yellow crystalline solid used in the manufacture of dyes, esp anthraquinone dyes , which have excellent colour properties. Formula: C 6 H 4 (CO) 2 C 6 H 4

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anthraquinone Scientific  

/ ăn′thrə-kwĭ-nōn′,-kwĭn′ōn′ /

1. A yellow crystalline powder that is insoluble in water and used chiefly in the manufacture of dyes. Chemical formula: C ₁₄ H ₈ O ₂ .

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Etymology

Origin of anthraquinone

First recorded in 1880–85; anthra(cene) + quinone

Example Sentences

Traditional industrial production of H2O2 via the anthraquinone process using hydrogen and oxygen, is highly energy-intensive.

From Science Daily • Feb. 28, 2024

Various synthetic processes have been used for the preparation of anthraquinone.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" by Various

This compound on heating with phosphoric anhydride loses water and yields anthraquinone, It may be prepared in a similar manner by heating phthalyl chloride with benzene in the presence of aluminium chloride.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" by Various

Various sulphonic acids of anthraquinone are known, as well as oxy-derivatives, for the preparation and properties of which see Alizarin.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" by Various

When the oxidation is complete, the anthraquinone is separated in a filter press, washed and heated to 120� C. with commercial oil of vitriol, using about 2� parts of vitriol to 1 of anthraquinone.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" by Various