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| | 2-Amino-4-chlorophenol-6-sulfonic acid Basic information |
| Product Name: | 2-Amino-4-chlorophenol-6-sulfonic acid | | Synonyms: | 3-amino-5-chloro-2-hydroxy-benzenesulfonicaci;Metanilic acid, 5-chloro-2-hydroxy-;Metanilic acid, 5-chloro-2-hydroxy- (8CI);6-AMINO-4-CHLORO-1-PHENOL-2-SULPHONICACID;2-Amino-4-chlorphenol-6-sulfonsure;6-Amino-4-chlorophenol-2-sulfonic acid;BENZENESULFONICACID,3-AMINO-5-CHLORO-2-HYDROXY;2-Amino-4-chlorophenyl-6-sulfonic acid | | CAS: | 88-23-3 | | MF: | C6H6ClNO4S | | MW: | 223.63 | | EINECS: | 201-813-5 | | Product Categories: | Intermediates of Dyes and Pigments | | Mol File: | 88-23-3.mol |  |
| | 2-Amino-4-chlorophenol-6-sulfonic acid Chemical Properties |
| Hazard Codes | C | | Risk Statements | 34 | | Safety Statements | 22-24/25-26-39 | | RIDADR | 2811 | | HS Code | 2922.29.8190 | | HazardClass | 6.1 | | PackingGroup | III |
| | 2-Amino-4-chlorophenol-6-sulfonic acid Usage And Synthesis |
| Uses | The acid is an important intermediate for dyes. It is used mainly in the manufacture of Diamond Black P 2 B and of acid chrome blue dyes. | | Production Methods | 2-Amino-4-chlorophenol-6-sulfonic acid obtained from p-chlorophenol by sulfonation and nitration is reduced with iron and hydrochloric acid without being precipitated. After filtering from the iron sludge, the highly alkaline reduction liquor is concentrated by evaporation and decolorized with activated carbon. Upon acidification 3-amino-5-chloro-2-hydroxybenzenesulfonic acid precipitates. Yield 72 %, based on p-chlorophenol. | | General Description | Off-white solid. | | Air & Water Reactions | May be sensitive to prolonged exposure to air and/or light. Insoluble in water. | | Reactivity Profile | 2-Amino-4-chlorophenol-6-sulfonic acid may react with strong oxidizing or reducing agents and with mineral acids and bases | | Fire Hazard | Flash point data are not available for 2-Amino-4-chlorophenol-6-sulfonic acid, but 2-Amino-4-chlorophenol-6-sulfonic acid is probably combustible. |
| | 2-Amino-4-chlorophenol-6-sulfonic acid Preparation Products And Raw materials |
| Raw materials | 4-Chloro-2-nitrophenol-6-sulfonic acid-->N-(5-chloro-2-hydroxyphenyl)acetamide-->2-Amino-4-chlorophenol-->Iron-->Hydrochloric acid-->4-Chlorophenol | | Preparation Products | 3-[(5-Chloro-2-hydroxy-3-sulfophenyl)azo]-4-hydroxy-1-naphthalenesulfonic acid disodium salt-->sodium [5-chloro-2-hydroxy-3-[(1,2,3,4-tetrahydro-2,4-dioxoquinolin-3-yl)azo]benzene-1-sulphonato(3-)]hydroxychromate(1-)-->Cobaltate(3-), bis[5-chloro-2-(hydroxy-κO)-3-[[2-(oxo-κO)-1-[(phenylamino)carbonyl]propyl]azo-κN1]benzenesulfonato(3-)]-, disodium hydrogen-->sodium 3-[(1-butyl-1,2-dihydro-4-hydroxy-2-oxo-3-quinolyl)azo]-5-chloro-2-hydroxybenzenesulphonate-->Acid Red 362-->Mordant Black 38-->ACID RED 183-->5-Chloro-3-[[1-(2-chloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-2-hydroxybenzenesulfonic acid disodium salt-->Mordant Red 19-->Mordant Red 71-->6-(5-Chloro-2-hydroxy-4-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt-->C.I. Solvent Orange 6(8CI,9CI)-->C.I. Acid Violet 91-->Acid mordant Black 7-->disodium hydrogen bis[5-chloro-3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-2-hydroxybenzenesulphonato(3-)]chromate(3-) |
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