| Identification | Back Directory | [Name]
3,5-Dihydroxynaphthalene-2,7-sulfonic acid | [CAS]
81344-22-1 | [Synonyms]
2,7-Naphthalenedisulfonic acid, 3,5-dihydroxy- | [Molecular Formula]
C10H8O8S2 | [MOL File]
81344-22-1.mol | [Molecular Weight]
320.296 |
| Hazard Information | Back Directory | [Production Methods]
2-Hydroxynaphthalene-3,6,8- trisulfonic acid is heated with caustic soda liquor at 240℃, and the melt is poured into water and neutralized. Careful addition of salt precipitates the product and leaves the more soluble 2,3-dihydroxy byproduct in solution. |
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