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| 6-Amino-4-hydroxy-2-naphthalenesulfonic acid Basic information |
| 6-Amino-4-hydroxy-2-naphthalenesulfonic acid Chemical Properties |
| Boiling point | 458℃[at 101 325 Pa] | | density | 1.4338 (rough estimate) | | vapor pressure | 0Pa at 25℃ | | refractive index | 1.6500 (estimate) | | storage temp. | Keep in dark place,Sealed in dry,Room Temperature | | form | powder to crystal | | pka | -0.20±0.40(Predicted) | | color | White to Gray to Brown | | Water Solubility | 4.5g/L(hot water) | | InChIKey | HBZVNWNSRNTWPS-UHFFFAOYSA-N | | LogP | -1.39 | | CAS DataBase Reference | 90-51-7(CAS DataBase Reference) | | EPA Substance Registry System | 2-Naphthalenesulfonic acid, 6-amino-4-hydroxy- (90-51-7) |
| Hazard Codes | C | | Risk Statements | 34 | | Safety Statements | 26-27-28-36/37/39-45 | | RIDADR | UN 2585 8/PG 3 | | WGK Germany | 1 | | RTECS | QK1295250 | | Toxicity | LD50 intraperitoneal in mouse: > 500mg/kg |
| 6-Amino-4-hydroxy-2-naphthalenesulfonic acid Usage And Synthesis |
| Uses | 6-Amino-?4-?hydroxy-2-naphthalenesulfonic Acid is used in the synthesis of mono-azo dyes for application towards synthetic fibers. Also used in the synthesis of dyes with high technical properties for silk. | | Flammability and Explosibility | Notclassified |
| 6-Amino-4-hydroxy-2-naphthalenesulfonic acid Preparation Products And Raw materials |
| Raw materials | Sodium hydroxide-->Sulfur dioxide-->2-Naphthol-->2-Naphthylamine | | Preparation Products | disodium 5-((4-acetylamino-2-sulphophenyl)azo)-6-amino-4-hydroxynaphthalene-2-disulphonate-->Direct Grey D-->4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-5-hydroxy-3-[(4-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt-->C.I. Direct Black 151-->Direct Grey D-->Acid Red 440-->Direct Black 197-->CHLORAZOL BLACK BH-->5-[[2,4-Diamino-5-[(8-hydroxy-6-sodiosulfo-2-naphthalenyl)azo]phenyl]azo]-4-hydroxy-3-[[4'-[(4-hydroxyphenyl)azo][1,1'-biphenyl]-4-yl]azo]naphthalene-2,7-disulfonic acid disodium salt-->3-Amino-4-[[4'-[(2-amino-8-hydroxy-6-sodiosulfo-1-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2,7-disulfonic acid disodium salt-->DIRECT BLACK 22-->C.I. Direct Brown 166-->2-Naphthalenesulfonic acid, 6-[[4-amino-6(or 7)-sulfo-1-naphthalenyl]azo]-3-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-4-hydroxy-, disodium salt-->Glycine, N-[5-amino-4-[2-[4-[2-[[2-(2,4-diamino-5-methylphenyl)diazenyl]hydroxysulfo-2-naphthalenyl]diazenyl]phenyl]diazenyl]-2-methylphenyl]-, sodium salt (1:2)-->ACID RED 266-->disodium 6-amino-5-[(4-amino-2-sulphonatophenyl)azo]-4-hydroxynaphthalene-2-sulphonate |
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