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Carbosynth
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Product Name:2,3-Dihydroxynaphthalene-6-sulfonicacid CAS:92-27-3
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Alfa Chemistry
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+1 (201) 478-8534 |
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| 6,7-Dihydroxynaphthalene-2-sulfonic acid Basic information |
| 6,7-Dihydroxynaphthalene-2-sulfonic acid Chemical Properties |
| 6,7-Dihydroxynaphthalene-2-sulfonic acid Usage And Synthesis |
Chemical Properties | 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. | Production Methods | 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 Preparation Products And Raw materials |
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