|
|
| | 4,5-dihydroxynaphthalene-1-sulphonic acid Basic information |
| Product Name: | 4,5-dihydroxynaphthalene-1-sulphonic acid | | Synonyms: | 4,5-dihydroxynaphthalene-1-sulphonic acid;4,5-Dihydroxy-1-naphthalenesulfonic acid;4,5dihydroxynaphthalene-1-sulfonic acid;1-Naphthalenesulfonic acid, 4,5-dihydroxy- | | CAS: | 83-65-8 | | MF: | C10H8O5S | | MW: | 240.23 | | EINECS: | 201-492-1 | | Product Categories: | | | Mol File: | 83-65-8.mol |  |
| | 4,5-dihydroxynaphthalene-1-sulphonic acid Chemical Properties |
| | 4,5-dihydroxynaphthalene-1-sulphonic acid Usage And Synthesis |
| Description | 4,5-Dihydroxynaphthalene-1-sulfonic acid [83-65-8]. (1,8-dihydroxynaphthalene-4- sulfonic acid), dioxy Chicago acid, dioxy S acid, C10H8O5S, Mr 240.2, is sparingly soluble in water, but the sodium salt is readily soluble. Heating with dilute sulfuric acid at 150℃ gives 1,8-dihydroxynaphthalene. | | Production Methods | 1-Hydroxynaphthalene-4,8- disulfonic acid is heated with 82 % caustic soda liquor for 3 h at 235℃. The melt is poured into excess hydrochloric acid and sulfur dioxide is expelled. After cooling, the product is filtered off and washed with brine; the yield is 83 %. |
| | 4,5-dihydroxynaphthalene-1-sulphonic acid Preparation Products And Raw materials |
|