6,7-Dihydroxynaphthalin-2-sulfonsure

6,7-Dihydroxynaphthalene-2-sulfonic acid Chemische Eigenschaften,Einsatz,Produktion Methoden

• Chemische Eigenschaften

  6,7-Dihydroxynaphthalene-2-sulfonic acid [92-27-3]. (2,3-dihydroxynaphthalene-6-sulfonic acid), dioxy R acid, C10H8O5S, Mr 240.2, is readily soluble in water. The sodium salt is sparingly soluble in cold water but readily soluble in hot water. Heating with dilute sulfuric acid at 190 C gives 2,3-dihydroxynaphthalene.

• Vorbereitung Methode

  2-Hydroxynaphthalene-3,6- disulfonic acid is heated with 70 % caustic soda liquor for 4 h at 270℃, after which the reaction mixture is diluted with water and poured into excess hydrochloric acid. The precipitated product is filtered off and washed with brine; the yield is 90 %.

6,7-Dihydroxynaphthalene-2-sulfonic acid Upstream-Materialien And Downstream Produkte

6,7-Dihydroxynaphthalin-2-sulfonsure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global(6)Suppliers

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