Sodium 2-anthraquinonesulfonate
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Names | |
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Preferred IUPAC name
Sodium 9,10-dioxo-9,10-dihydroanthracene-2-sulfonate | |
Other names
Sodium 2-anthrachinonesulphonate; 2-Anthraquinone sodium sulfonate; Silver salt
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.004.555 |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C14H7NaO5S | |
Molar mass | 310.25 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Sodium 2-anthraquinonesulfonate (AMS) is a water-soluble anthraquinone derivative. In the laboratory it can be prepared by sulfonation of anthraquinone.[1]
Digester additive in papermaking
AMS is used as a catalyst in 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,[2] but has a higher cost.
References
- ^ Cumming, W. M. (1937). Systematic organic chemistry. p. 325. Retrieved 2016-01-11 – via PrepChem.com.
- ^ "Anthraquinone/ alkali pulping. A literature review" (PDF). July 1978.
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- Anthraquinones
- Sulfonates
- Organic sodium salts