1-Anthraquinonesulfonic acid synthesis
- Product Name:1-Anthraquinonesulfonic acid
- CAS Number:82-49-5
- Molecular formula:C14H8O5S
- Molecular Weight:288.28
84-65-1
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Yield: 98%
Reaction Conditions:
in nitric acid-treated palladium;sulfuric acid
Steps:
1.c (a)
(c) Sulphonation of anthraquinone in the presence of the nitric acid-treated palladium To a solution of 6 ml of 65% oleum in 14 ml of 95% sulphuric acid was added the nitric acid-treated palladium (Treatment (a)) at room temperature. Then, 20.8 gm of anthraquinone was added to the above mixture at a heated temperature of about 70 degs C. Finally, 10 ml of 65% oleum was added dropwise at 90 degs C. in one hour, and the mixture was agitated at this temperatture for another 3 hours. The reaction mixture contains the following mole percentages of components based on the moles of anthraquinone added. When the reaction mixture was diluted with water and filtered and the anthraquinone-1-sulphonic acid was salted out from the filtrate, 28.7 gm of sodium salt of the anthraquinone-1-sulphonic acid with 98% purity was obtained.
References:
501 China Technical Consultants, Inc. US4711743, 1987, A
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