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Sodium 2-anthraquinonesulfonate
Sodium 2-anthraquinonesulfonate (AMS) is a water-soluble anthraquinone derivative. In the laboratory it can be prepared by sulfonation of anthraquinone.
Digester additive in papermaking
AMS is used as a catalyst in the production of alkaline pulping in the soda process. It goes through a redox cycle similar to that of anthraquinone to give a catalytic effect. AMS was discovered as an efficient pulping catalyst before anthraquinone, but has a higher cost.
References
References
- Cumming, W. M.. (1937). "Systematic organic chemistry".
- (July 1978). "Anthraquinone/ alkali pulping. A literature review".
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