Product performance and production principle of anthraquinone-1,5-disulfonic acid

The molecular formula of anthraquinone-1,5-disulfonic acid is C ₁₄ H ₈ O ₈ S ₂ , the molecular weight is 368.

1.

The pure product is white crystals, and the industrial product is yellow to brownish-yellow powder.

2.

Anthraquinone is sulfonated with fuming sulfuric acid to obtain anthraquinone-1,5-disulfonic acid and anthraquinone-1,8-disulfonic acid, which are separated to obtain anthraquinone-1,5-disulfonic acid

3.

4.

5.

Sulfonation reactor, acid precipitation pot, filter, storage tank

6.

Add 275kg of anthraquinone and 603kg of fuming sulfuric acid into the sulfonation reactor , heat it to 120～125℃, and keep it for 4h

7.

8.

Used as an intermediate for disperse dyes, acid dyes and vat dyes

9.

(1) The raw material anthraquinone is toxic, and fuming sulfuric acid is highly corrosive

(2) This product is low-toxic and is packed in iron drums lined with plastic bags.
It is stored in a cool, ventilated and dry place, protected from sun, heat and moisture
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