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| | 4-aminonaphthalene-1,6-disulfonic acid Basic information |
| Product Name: | 4-aminonaphthalene-1,6-disulfonic acid | | Synonyms: | 1-naphthylamine-4,7-disulfonic acid;4-aminonaphthalene-1,6-disulfonic acid;4-azanylnaphthalene-1,6-disulfonic acid;4-aminonaphthalene-1,6-disulphonic acid;4-Amino-1,6-naphthalenedisulfonic acid;Dahl's acid III;1,6-Naphthalenedisulfonic acid, 4-amino- | | CAS: | 85-75-6 | | MF: | C10H9NO6S2 | | MW: | 303.31 | | EINECS: | 201-630-0 | | Product Categories: | | | Mol File: | 85-75-6.mol |  |
| | 4-aminonaphthalene-1,6-disulfonic acid Chemical Properties |
| RIDADR | 1759 | | HazardClass | 8 | | PackingGroup | III |
| | 4-aminonaphthalene-1,6-disulfonic acid Usage And Synthesis |
| Description | 1-Aminonaphthalene-4,7-disulfonic acid [85-75-6]. (4-aminonaphthalene-1,6-disulfonic acid), Dahl’s acid III, C10H9NO6S2, Mr 303.3, and its sodium salt are readily soluble in water, but the calcium and barium salts are only sparingly soluble. Conversion to 1-hydroxynaphthalene-4,7-disulfonic acid is achieved by reverse-Bucherer reaction or diazotization and hydrolysis. Sulfonation (35 % oleum, 90℃) yields 1-aminonaphthalene-2,4,7-trisulfonic acid. | | Production Methods | ?Although separation of 4-aminonaphthalene-1,6-disulfonic acid from the mixture obtained by sulfonation of naphthionic acid is not practicable on a large scale, the 1,4,7-isomer can be obtained directly in high yield by sulfonation of 1-aminonaphthalene-7-sulfonic acid with oleum. |
| | 4-aminonaphthalene-1,6-disulfonic acid Preparation Products And Raw materials |
| Preparation Products | 1,6-Naphthalenedisulfonic acid-->1,-Naphthalenedisulfonic acid, 4,4'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis-, tetrasodium salt-->1,6-Naphthalenedisulfonic acid, 4-[[4-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-, trisodium salt-->2-Naphthalenesulfonic acid, 8-(phenylamino)- |
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