Name | naphthol as-sg practical grade |
Synonyms | C.I.37595 BrentholGB Naphthol AS-SG NAPHTHOL AS-SG C.I.Azoiccouplingcomponent13 naphthol as-sg practical grade C.1.AzoicCouplingComponent(37595) 2-Hydroxy-11-H-benzo-2-Carbazole-3-Carbonyl-P-Anisidine 2-hydroxy-4-methoxy-11H-benzo(a)carbazole-3-carboxanilide 2-hydroxy-n-(4-methoxyphenyl)-11h-benzo[a]carbazole-3-carboxamid N-(4-Methoxyphenyl)-2-hydroxy-11H-benzo[a]carbazole-3-carboxamide 2-hydroxy-N-(4-methoxyphenyl)-11H-benzo[a]carbazole-3-carboxamide 2-Hydroxy-N-(4-methoxyphenyl)-11H-benzo[a]carbazole-3-carboxamide |
CAS | 86-19-1 |
EINECS | 201-654-1 |
InChI | InChI=1/C24H18N2O3/c1-29-16-9-7-15(8-10-16)25-24(28)20-12-14-6-11-18-17-4-2-3-5-21(17)26-23(18)19(14)13-22(20)27/h2-13,26-27H,1H3,(H,25,28) |
Molecular Formula | C24H18N2O3 |
Molar Mass | 382.41 |
Density | 1.408±0.06 g/cm3(Predicted) |
Melting Point | 324~326℃ |
Boling Point | 598.6±45.0 °C(Predicted) |
Flash Point | 315.8°C |
Vapor Presure | 6.37E-15mmHg at 25°C |
pKa | 9.16±0.30(Predicted) |
Refractive Index | 1.812 |
Physical and Chemical Properties | Traits olive green powder. melting point 324~326 ℃ solubility: soluble in pyridine, insoluble in water and soda ash solution. Dissolved in sulfuric acid and caustic soda solution is Brown yellow. |
Use | Mainly used as a priming agent for cotton fiber dyeing and printing |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
purpose | mainly used as a priming agent for cotton fiber dyeing and printing phenol AS-SG is mainly used as a priming agent for cotton dyeing dark colors, and also used for viscose fiber, silk, nylon dyeing, generally not used for printing. The affinity to cotton is high, and the coupling ability is weak. In combination with the red base B, the black dye can replace the reduced black BB. It is mainly used as a priming agent for cotton fabric dyeing and printing. Printing and dyeing black more characteristic, light black, not brittle cloth, and good fastness. |
production method | 2,3-acid, phenylhydrazine and p-aminoanisole are used as basic raw materials. The 2,3-acid is sulfonated with fuming sulfuric acid, and then fused with sodium hydroxide, and then condensed with phenylhydrazine in the presence of chlorobenzene to close the ring, then sodium carbonate to form a salt, and then p-aminoanisole to condense chlorobenzene, finally, the final product was obtained by filtration and drying. 1. Sulfonation 2. Alkali fusion 3. Condensation ring closure 4. Condensation product specification: Melting point ≥ 324 ℃. Raw material consumption (kg/t)2,3-acid 1550 phenylhydrazine 375 p-aminoanisole 350 with 2,3-acid, phenylhydrazine and p-methoxyaniline as raw materials, first, 2-hydroxy-1 ',2'-benzocarbazole -3-carboxylic acid is prepared by sulfonation of 3-acid with fuming sulfuric acid, alkali melting of sodium hydroxide, and then condensation ring closure with phenylhydrazine in chlorobenzene medium, it is condensed with P-methoxyaniline, neutralized, distilled, filtered and dried to obtain the finished product.. |