C.I. Mordant Brown 33, monosodium salt (8CI)
mordant brown 33
CAS: 3618-62-0
Molecular Formula: C12H10N5NaO6S
C.I. Mordant Brown 33, monosodium salt (8CI) - Names and Identifiers
| Name | mordant brown 33 |
| Synonyms | C.I. 13250 mordant brown 33 Acid Mordant Brown RH C.I. Mordant Brown 33 Mordant Brown 33 (C.I.) Mordant Brown 33 (13250) C.I. Mordant Brown 33 (VAN) C.I. Mordant Brown 33, monosodium salt (8CI) sodium 2,4-diamino-5-(2-hydroxy-5-nitrophenylazo)benzenesulphonate sodium 2,4-diamino-5-[(E)-(2-hydroxy-5-nitrophenyl)diazenyl]benzenesulfonate sodium 2,4-diamino-5-[(2E)-2-(3-nitro-6-oxocyclohexa-2,4-dien-1-ylidene)hydrazinyl]benzenesulfonate |
| CAS | 3618-62-0 |
| EINECS | 222-810-5 |
| InChI | InChI=1/C12H11N5O6S.Na/c13-7-4-8(14)12(24(21,22)23)5-9(7)15-16-10-3-6(17(19)20)1-2-11(10)18;/h1-5,18H,13-14H2,(H,21,22,23);/q;+1/p-1/b16-15+ |
C.I. Mordant Brown 33, monosodium salt (8CI) - Physico-chemical Properties
| Molecular Formula | C12H10N5NaO6S |
| Molar Mass | 375.293 |
| Physical and Chemical Properties | Chemical properties brown powder. Soluble in water and ethanol, yellow brown, soluble in fibrinolytic (glycol ether), slightly soluble in acetone, insoluble in other organic solvents. It is red to reddish brown in concentrated sulfuric acid, and then becomes orange precipitate after dilution; it is red in concentrated nitric acid and then turns to yellow brown. Its aqueous solution, add concentrated hydrochloric acid to turn brown and orange; add concentrated sodium hydroxide to orange. When dyeing, the color is darker when encountering copper; when encountering iron, the color is darker than yellow. Solubility in water (80 ℃)100g/L. |
| Use | Mainly used for wool, wool and all kinds of wool fabric dyeing, especially suitable for dyeing carpet |
C.I. Mordant Brown 33, monosodium salt (8CI) - Risk and Safety
| WGK Germany | 3 |
C.I. Mordant Brown 33, monosodium salt (8CI) - Upstream Downstream Industry
C.I. Mordant Brown 33, monosodium salt (8CI) - Nature
| EPA chemical information | Benzenesulfonic acid, 2,4-diamino-5-[(2-hydroxy-5-nitrophenyl)azo]-, monosodium salt (3618-62-0) |
Last Update：2024-04-10 22:29:15
C.I. Mordant Brown 33, monosodium salt (8CI) - Production method
after diazotization of 4-nitro-2-aminophenol, it is coupled with 2, 4-diaminobenzene sulfonic acid, and then salted out, filtered, dried and other processing processes to obtain the product. The dyeing fastness of the product on wool: sun level 5, soap level, water immersion, perspiration and other fading are all 4-5, carbonization and wet friction are all 4. Raw material consumption (kg/t) m-diaminobenzenesulfonic acid (100%) 3404-nitro-2-aminophenol (100%) 240 hydrochloric acid (31%) 260 sodium nitrite (98%) 125 soda ash (industrial) 30 ammonium sulfate 30 disodium hydrogen phosphate 6 refined salt 1050 Taikao oil 5
Last Update：2024-04-10 22:29:15
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CAS: 3618-62-0
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CAS: 3618-62-0
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Raw Materials for C.I. Mordant Brown 33, monosodium salt (8CI)