8003-62-1
Direct Black 9
CAS: 8003-62-1
Molecular Formula: C32H23N9Na2O7S2
8003-62-1 - Names and Identifiers
| Name | Direct Black 9 |
| Synonyms | C.I. 31565 C.I. 31560 Direct Black FF Direct black 94 Direct Black L-N Direct Black 9 C.I. Direct Black 9 Atul Direct Black FR Dycosdirect Black FF. Dinamine Fast Black FR C.I. Direct Black 9 (VAN) (8CI) 3-[[4-[[4-amino-6(or7)-sulfo-1-naphthalenyl]azo]phenyl]azo]-6-[(2,4-diaminophenyl)azo]-4-hydroxy-2-naphthalenesulfonic aci disodium salt disodium,(3Z)-3-[[4-[(4-amino-6-sulfonatonaphthalen-1-yl)diazenyl]phenyl]hydrazinylidene]-6-[(2,4-diaminophenyl)diazenyl]-4-oxonaphthalene-2-sulfonate disodium 8-amino-5-[(E)-{4-[(2Z)-2-{7-[(E)-(2,4-diaminophenyl)diazenyl]-1-oxo-3-sulfonatonaphthalen-2(1H)-ylidene}hydrazinyl]phenyl}diazenyl]naphthalene-2-sulfonate |
| CAS | 8003-62-1 |
| EINECS | 232-321-9 |
| InChI | InChI=1/C32H25N9O7S2.2Na/c33-18-2-11-29(27(35)14-18)40-38-21-3-1-17-13-30(50(46,47)48)31(32(42)24(17)15-21)41-37-20-6-4-19(5-7-20)36-39-28-12-10-26(34)25-16-22(49(43,44)45)8-9-23(25)28;;/h1-16,37H,33-35H2,(H,43,44,45)(H,46,47,48);;/q;2*+1/p-2/b39-36+,40-38+,41-31+; |
8003-62-1 - Physico-chemical Properties
| Molecular Formula | C32H23N9Na2O7S2 |
| Molar Mass | 755.69066 |
| Physical and Chemical Properties | Black uniform powder. Soluble in water, ethylene glycol ether, ethanol-soluble, insoluble in other organic solvents. The aqueous solution was red and black, and the addition of concentrated alkali solution was slightly reddish. Dark blue to Navy in concentrated sulfuric acid, dark red blue to black after dilution; Red solution in concentrated nitric acid; Slightly soluble in concentrated hydrochloric acid, Red Gray. |
8003-62-1 - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | direct black L-N is suitable for dyeing cotton, hemp, rayon, silk, nylon, etc, it is especially suitable for one-bath dyeing of wool-viscose blended fabrics. It is used for dyeing cotton, hemp, viscose, silk and nylon, especially for one-bath dyeing of wool/viscose blended fabrics. used for dyeing cotton, viscose and other fabrics |
| production method | p-nitroaniline, 1, 7-cliffic acid, 1, 6-cliffic acid, gamma acid and M-phenylenediamine are basic raw materials. After diazotization of p-nitroaniline, coupling with 1,6-and 1,7-cliffic acid (first coupling), the nitro group is reduced to an amino group, re-diazotization (second diazotization) followed by coupling with gamma-acid (second coupling); Re-diazotization (third diazotization followed by coupling with M-phenylenediamine (third coupling), finally, it is prepared by salting out, filtering and drying. Kg/T P-nitroaniline (100%) 1401,6-and 1,7-clivolic acid (100%) 226γ acid (100%) 211 m-phenylenediamine (100%) 126 sodium nitrite (100%) 227 hydrochloric acid (30%) 1785 soda ash (industrial) 1150 sodium acetate (industrial) 81 urea (industrial) 15 refined salt (industrial) 100 red oil (industrial) 23 with P-nitroaniline, A mixture of [5-amino -2-naphthalenesulfonic acid (1, 6-cliffic acid) and 8-amino -2-naphthalenesulfonic acid (1, 7-cliffic acid) the mixture of], Gamma acid, M-phenylenediamine as raw materials, the first nitroaniline diazotization, and mixed with the coupling of the Nitro acid, and then the coupling product of Nitro reduction, and diazotization, A second coupling with gamma acid was performed, and the secondary coupling product was continued to diazotize, followed by a third coupling with meta-phenylenediamine to obtain the product. After salting out, filtration, drying, grinding to get the finished product.. |
Last Update：2024-04-09 20:52:54
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